Not seeing 5ghz network - Huawei MediaPad M5 Questions & Answers

Hi all, Recently got my m5 from eBay here in the USA. I have a lot of questions but the biggest one is the tablet isn't seeing my 5GHz network. It connects to the 2.4GHz network just fine and we have a house full of other devices that connect to the 5GHz network so not sure what is going on.
To be clear, the 5Ghz network isn't even an option to select.
Model: SHT-W09
Build: SHTW09 8.0.0.151

Probably you are using a channel which is not supported? For me the 5GHz connection is working without any issues.

Try manually entering the ssid.

Try a factory reset. I have 5ghz on mine

Thanks for the idea. That worked. It was on auto channel using 149. Moved it to 40 and it can see and connect now. Thanks again!

Related

[Q] HTC One won't connect to internet using 5ghz wifi

Just got this phone today,
I have a Netgear R6300 capable of AC wifi but my phone wont connect to the internet when its on the 5ghz network. It works fine on the 2.5ghz but the other it connects but no internet.
I tried giving it a reserved ip and looking at the settings on my router but nothing is popping out at me?
Anyone have any ideas?
HTC One on Rogers network (Canada)
WakeTurbulence said:
Just got this phone today,
I have a Netgear R6300 capable of AC wifi but my phone wont connect to the internet when its on the 5ghz network. It works fine on the 2.5ghz but the other it connects but no internet.
I tried giving it a reserved ip and looking at the settings on my router but nothing is popping out at me?
Anyone have any ideas?
HTC One on Rogers network (Canada)
Click to expand...
Click to collapse
Check the Advanced Wi-Fi settings. Check Freq Band and make sure it is not set to 2.4 GHz only. Also try turning on "Best Wi-Fi Performance" and see if that helps.
Mine connects to my 5GHz network with no problems at all.
Hope that helps.
kevinrstruck said:
Check the Advanced Wi-Fi settings. Check Freq Band and make sure it is not set to 2.4 GHz only. Also try turning on "Best Wi-Fi Performance" and see if that helps.
Mine connects to my 5GHz network with no problems at all.
Hope that helps.
Click to expand...
Click to collapse
What router do you have? Also what kind of connection speed are you getting?
I checked freq and it was on auto, tried just 5ghz, also tried Best wifi but it still cant connect to the internet. I gets a connection with the router according to the phone but my 6300 doesnt show it as a connected device.
no problem here i can connect to my 5Ghz network with my a/n capable Time Capsule router. speeds are 55..27 Mbps download / 35.95 Mbps upload. my One wifi settings are set to Auto (vs. setting to 2.5 or 5 Ghz).
I have a Netgear WNDR4500. Speeds are 40 Mbps down and 28 Mbps up. That is with the router 2 floors above me in my house. My settings are also set to "Auto" as well. I connected immediately when I got home on Thursday after getting the device. I have had no problems at all with WiFi. Sorry I cannot be of more assistance.
I have no problem when connecting to my R6300 in AC mode ...
mine connects just fine
No connection at 5ghz, can only connect at 2ghz
I have d-link dr-825 rev B router with [DD-WRT v24-sp2 (04/01/13) std - build 21153] firmware. It has dual 2ghz and 5ghz radios.
I can only connect at 2ghz and unable to connect at 5ghz.
I have a dell latitude laptop and my old Galaxy SII has no problem connecting.
Howvever Htc-One lists the access point, correctly determines what kind of security is on (like wpa/wpa2 etc) but is unable to connect. I think once I saw a brief flash saying authentication failure on my phone when trying to connect to 5ghz. So I removed all security and made it completely open just to try. Again no connection without any error.
I am thinking of returning it if it is going to be a problem.
---------- Post added at 12:17 PM ---------- Previous post was at 11:40 AM ----------
Ok, I have solved the problem, now it is connecting. I made two changes in the wirless setup. Enable RTS/CTS protection and also enabled short preamble. After these two changes it is connecting as expected.
WakeTurbulence said:
Just got this phone today,
I have a Netgear R6300 capable of AC wifi but my phone wont connect to the internet when its on the 5ghz network. It works fine on the 2.5ghz but the other it connects but no internet.
I tried giving it a reserved ip and looking at the settings on my router but nothing is popping out at me?
Anyone have any ideas?
HTC One on Rogers network (Canada)
Click to expand...
Click to collapse
I'm having the same issue with mine and the same router, can not quiet figure out what is going on.
Just quick update i just did an update on my router and it seems to connect completely fine
For those who have router issues, check for a firmware update! Most routers have a few updates while sitting on the shelf. I used to always update and properly configure routers (with out the software disc) for customers at my old job and we rarely had problems of customers bribing it back. And throw out the disc that comes with the router. The software can cause headaches down the road. All security settings can be done inside the router through any web browser and router IP.
Just got a black ATT HTC ONE, everything is great, but no connection to 5ghz network here either.
I have a Netgear WNDR3700 and just updated to the DD-WRT build 21676, and still no go...
All our macbook airs are working fine on the 5ghz...:cryingrobably time for a new router lol
Connects to my linksys ea6500 5ghz ac just fine link speed around 400 mbps
Sent from my HTC One using XDA Premium HD app
Added an Airport Express, and 5ghz works fine from that...
cq_ said:
Just got a black ATT HTC ONE, everything is great, but no connection to 5ghz network here either.
I have a Netgear WNDR3700 and just updated to the DD-WRT build 21676, and still no go...
All our macbook airs are working fine on the 5ghz...:cryingrobably time for a new router lol
Click to expand...
Click to collapse
Prefers 2.4
I have a dual band N router, and my One seems to "prefer" connecting to the 2.4 GHz network over the 5 GHz.
It will work fine on the 5GHz, but I have to switch it manually when I walk in the house (so I usually don't).
I guess I could just tell my phone to "forget" the 2.4 network to fix this. On more thinking, maybe it's a coverage thing - it probably finds the 2.4 GHz network first. Lower frequencies penetrate walls better, right?
doxy-LS said:
I have a dual band N router, and my One seems to "prefer" connecting to the 2.4 GHz network over the 5 GHz.
It will work fine on the 5GHz, but I have to switch it manually when I walk in the house (so I usually don't).
I guess I could just tell my phone to "forget" the 2.4 network to fix this. On more thinking, maybe it's a coverage thing - it probably finds the 2.4 GHz network first. Lower frequencies penetrate walls better, right?
Click to expand...
Click to collapse
Correct. The 2.4 GHz network should travel further. Its all about that sweet sweet 5 GHz speed though! Mine connects to my Asus RT-AC66U router just fine.
doxy-LS said:
I have a dual band N router, and my One seems to "prefer" connecting to the 2.4 GHz network over the 5 GHz.
It will work fine on the 5GHz, but I have to switch it manually when I walk in the house (so I usually don't).
I guess I could just tell my phone to "forget" the 2.4 network to fix this. On more thinking, maybe it's a coverage thing - it probably finds the 2.4 GHz network first. Lower frequencies penetrate walls better, right?
Click to expand...
Click to collapse
You could always set it to 5ghz preferred. Mine connects to my netgear 5ghz ac router with no issues. Also if you have the same password for both frequencies it could just be connecting to that first.
Sent from my HTC One using Tapatalk 2
no preferred option?
godfirst said:
You could always set it to 5ghz preferred. Mine connects to my netgear 5ghz ac router with no issues. Also if you have the same password for both frequencies it could just be connecting to that first.
Sent from my HTC One using Tapatalk 2
Click to expand...
Click to collapse
I did check when sitting in my driveway - the 2.4 GHz network was still 2 "arcs" there & the 5 GHz was just a dot, so I think it is connecting to the first one it finds & sticking with it. In the Wi-Fi preferences, the "Wi-Fi frequency band" options are only Auto/5 GHz only/2.4 GHz only. No 'preferred' option - I'm running stock though - is there something different in the custom ROMs? I'm not afraid to root/ROM - I just haven't seen a good reason yet.
doxy-LS said:
I did check when sitting in my driveway - the 2.4 GHz network was still 2 "arcs" there & the 5 GHz was just a dot, so I think it is connecting to the first one it finds & sticking with it. In the Wi-Fi preferences, the "Wi-Fi frequency band" options are only Auto/5 GHz only/2.4 GHz only. No 'preferred' option - I'm running stock though - is there something different in the custom ROMs? I'm not afraid to root/ROM - I just haven't seen a good reason yet.
Click to expand...
Click to collapse
Use the only 5ghz only. There's a big difference with custom roms and stock att at the moment. There's new firmware etc. 2.4Ghz has more penetration through walls then 5Ghz. That's why you have more bars of one and not the other.
Sent from my HTC One using Tapatalk 2
godfirst said:
Use the only 5ghz only. There's a big difference with custom roms and stock att at the moment. There's new firmware etc. 2.4Ghz has more penetration through walls then 5Ghz. That's why you have more bars of one and not the other.
Sent from my HTC One using Tapatalk 2
Click to expand...
Click to collapse
Well I want to be able to use the 2.4 GHz networks when available, so I'll leave it on auto. I guess the speed isn't a huge deal when the wireless connection is so much faster than my internet connection.
And yes, I know that there are lots of differences between stock & custom ROMs (my last phone was a Nexus S & I was always changing ROMs). What I meant to ask was if there was a difference with that specific option.
wifi 2.4GHz connection problems
Welcome
I have silver One for 3 weeks now, but it was 2 weeks in service - they reinstalled software and returned phone. No change.
I can't connect to any 2.4 Ghz network (G/N) ending Authentication Error. Only 5GHz works.
I tried it with Netgreat WNDR4700 (Gargoyle custom software), CISCO access point @ work, also random WiFi open networks in shops/malls, etc. Other devices i know and have at home ( Samsung Note II, htc Sensation, Acer Iconia tab, Dell Latitude laptop) works fine. Just the One cosing problems.
I run stock rom, how can I turn on more verbose logging or see what is happening in the Operation system while connecting? I must prove to Regenersis Poland service that my phone does not work. Otherwise they will say phone works within parameters.

Z2 Wi-Fi 5GHz issue (missing channels/disappearing channels)

RIght, firstly I've got a UK Z2 (Vodafone model, but unlocked and subsequently flashed with a different ROM).
My problem is that I can't connect to a router that only operates on the following channels at 5GHz; 149. 153, 157, 161.
These are apparently valid in the UK, although my iMac won't see them - but it's a 2009 model. My MacBook Air (US import) does, and my Z1 Compact (with EU Generic ROM) does. So does my Xperia SP. The Z1 I recently sold did too.
Now I assumed that the UK ROM, and now my Taiwanese Z2 ROM (the router is Taiwanese too), supported it because when I turn on the phone, it can see the router. However, it can't connect. It never gets an IP address, and then soon after it disappears never to be seen again! That's unless I reboot, but even then - sometimes - it won't show then either.
The Wi-Fi signal is excellent.
I've read before (for the Xperia Z) that you need a SIM card inserted, and there is. It's a Three UK SIM. That perhaps tells the phone what channels to use? But if it thinks these channels are not allowed, why does it initially show the router? Is there a delay before it notices what can't be used? And why would one UK SIM hide the channels, but not another?
In any case, my Z1 Compact currently has no SIM card inserted but still works.
I'm very confused. It doesn't appear to be a hardware issue (it would be a weird problem if it was), so it must be down to the ROM - and I've had both .55 (Vodafone original and then a EU generic) and now the Taiwanese .69 ROM.
Sorry for the long post, but I wanted to try and pre-empt any questions that might get asked.
Basically, is anyone else having the same issue and does anyone know a potential solution? I can't change the channels on the router and there's no other firmware for it. Obviously I could change the router, but I think I'll just have to stick with 2.4GHz in that case.
I know you say no fw is available for the router but im assuming you mean stock? Is dd-wrt/tomato available for it?
My s3 was the same on every custom rom i tried, 5ghz was always iffy :/ Will let you know if 5Ghz works for me when my z2 arrives friday
5 ghz works for me but not using the mentioned channels, in fact my router Won't even allow me to use those channels.
Sent from my D6503 using Tapatalk
corallus said:
5 ghz works for me but not using the mentioned channels, in fact my router Won't even allow me to use those channels.
Click to expand...
Click to collapse
The thing is, the router is from Taiwan and there doesn't appear to be any way to change the channels it operates on. For 5GHz, those four channels are it.
They do appear to be legal in the UK, but many devices won't support them.
I am just confused as to why the channels work on the SP, Z and Z1 Compact but not the Z2. And even more confused because it will show up for a little while but not connect, then disappear. That's an odd way of restricting Wi-Fi channels on the part of the handset.
Can you maybe doing a forget network and then re-adding it?
I'm in Singapore and have no problem connecting to 5Ghz channel 161.
I don't think it makes much sense for them to limit channels on the client side as people can travel anywhere with their smartphones and should be able to use any channel available..
Sent from my 2013023 using Tapatalk
p4t4h said:
Can you maybe doing a forget network and then re-adding it?
I'm in Singapore and have no problem connecting to 5Ghz channel 161.
I don't think it makes much sense for them to limit channels on the client side as people can travel anywhere with their smartphones and should be able to use any channel available..
Click to expand...
Click to collapse
Yes, but some devices do still restrict channels - based on what region you've set, and possibly in this case the SIM card.
I'll need to do further tests, like swapping the SIM for one, to see if that makes it work. At least then I might be in a position to report it as a bug to Sony.
I have removed/forgotten it when it was there, forcing me to re-enter the code, and it just doesn't connect. And while it isn't connected, it does then stop the phone connecting to anything else unless manually select it.
whats the make/model of the router?
Can confirm 5Ghz works just fine for me using Doom's kernel and Aur
jonmorris said:
RIght, firstly I've got a UK Z2 (Vodafone model, but unlocked and subsequently flashed with a different ROM).
My problem is that I can't connect to a router that only operates on the following channels at 5GHz; 149. 153, 157, 161.
These are apparently valid in the UK, although my iMac won't see them - but it's a 2009 model. My MacBook Air (US import) does, and my Z1 Compact (with EU Generic ROM) does. So does my Xperia SP. The Z1 I recently sold did too.
Now I assumed that the UK ROM, and now my Taiwanese Z2 ROM (the router is Taiwanese too), supported it because when I turn on the phone, it can see the router. However, it can't connect. It never gets an IP address, and then soon after it disappears never to be seen again! That's unless I reboot, but even then - sometimes - it won't show then either.
The Wi-Fi signal is excellent.
I've read before (for the Xperia Z) that you need a SIM card inserted, and there is. It's a Three UK SIM. That perhaps tells the phone what channels to use? But if it thinks these channels are not allowed, why does it initially show the router? Is there a delay before it notices what can't be used? And why would one UK SIM hide the channels, but not another?
In any case, my Z1 Compact currently has no SIM card inserted but still works.
I'm very confused. It doesn't appear to be a hardware issue (it would be a weird problem if it was), so it must be down to the ROM - and I've had both .55 (Vodafone original and then a EU generic) and now the Taiwanese .69 ROM.
Sorry for the long post, but I wanted to try and pre-empt any questions that might get asked.
Basically, is anyone else having the same issue and does anyone know a potential solution? I can't change the channels on the router and there's no other firmware for it. Obviously I could change the router, but I think I'll just have to stick with 2.4GHz in that case.
Click to expand...
Click to collapse
I previously owned a Z1 and found that 5ghz wifi was very poor on this device.....I now have a Z2 and the wifi is exactly the same.......works well on 2.4ghz, but poor on 5ghz. My wife's Nexus 5 works well on 5 Ghz so it must be down to Sony's implementation. I am using channels 36-48 not sure if I can access the higher channels, I presume not....think my router only has the lower channels......I have searched the web before for an answer to the problem, but no luck as yet....:crying:
just to add my 2cents to this, My UK bt homehub doesn't have those higher 5Ghz channels highest is 128 lowest is 36
Yeah, this has happened to me recently aswell. I used to connect the 5GHz 802.11ac wi-fi network at home on my Sony Xperia Z2, but a couple'o days ago it disappared. I can't see the 5GHz signal, I'm using 2.4GHz instead. But my laptop can see 5GHz signal and connect without any problems. The channels on 5GHz signal is 149,153 by the way. And channels 11, 7 on 2.4GHz signal.
So what might be the problem within my Sony Xperia Z2?
Thanks in advance.
Oh I just relieved that this problem is not only for me... Okay as some people mentioned wifi for Z1 was poor and Z too... so it might be problem w/
design of Z series. I am using AC-7260 wlan for my PC and seeing 5Ghz AP. But not for Z2....  
No jamming around my home, no one is using 5GHz other than my AP.
My Z2 works excellent on my 5ghz channel. I'm on vacation now so can't verify the channel I used. What I do know, is certain devices don't work as advertised with 5ghz. Just because one device sees it doesn't mean every device will. I've had to switch channels a few times for different phones although my laptop has always seen it.
Yeah, it must be the channel issue, I suppose. But at first, my Xperia Z2 was connecting to 5GHz signal without a problem... After a while this issue started. I didn't change any channels or something on my router, either. Interesting...
5GHz signals have inherently smaller ranges than 2.4GHz ones.
That said, my Z2 connects to my 5Ghz AC network just fine (range sucks though) but it has a problem keeping the connection to the 2.4GHz N/Mixed network from the same router (dualband ASUS RT-AC66U) alive after a period of time. It will still show as connected (with good signal strength) but will not have any access to anything else.
benengyj said:
5GHz signals have inherently smaller ranges than 2.4GHz ones.
That said, my Z2 connects to my 5Ghz AC network just fine (range sucks though) but it has a problem keeping the connection to the 2.4GHz N/Mixed network from the same router (dualband ASUS RT-AC66U) alive after a period of time. It will still show as connected (with good signal strength) but will not have any access to anything else.
Click to expand...
Click to collapse
Yeah, I'm well aware of this range thing between two signals. But my problem isn't something about it. My phone used to see and connect 5 GHz signal, but it doesn't see 5 GHz signal at all now. Even when I put my phone right on the router, between 6 antennae. (3 x 2.4GHz, 3 x 5GHz antenna)
This must either a software issue, or channels on 5GHz signal... But no, my phone was connecting without any problems for 3 weeks with the same channels. Must be software.
This isn't my only problem with wifi anyway, there's also a Bluetooth interference with 2.4GHz signal. Happens when Bluetooth is on at the same time with wifi. And when connected 2.4GHz signal, connection drops sometimes.
i found this thread now i had posted one earlier today.
what I have figured out is - the moment the SIM is inserted Z2 is taking off the channels that are not "legal" possible in the country determined by SIM.
I am on Telkomsel - indonesia, if NO SIM - I am able to connect on 5 GHZ very well. but once it senses the SIM card, the 5 GHZ vanishes.
This never happend on Z Ultra!
next step is to test on other channels on the router in 5 GHZ to see if it is limitation of Z2. Right now my router supports only 4 channels - 36 40 44 48 on 5 ghz band.
otherwise my mac and other units connect and work pretty well on these channels!
Alright, I've had my Xperia Z2 for 3 months now. I've never connected to my 5 GHz 802.11ac signal before, the phone doesn't detect it. I can only connect via 2.4 GHz band.
Why my phone doesn't detect 5 GHz wifi signal? What's wrong? What do you suggest?
What ia the max link speed you get on 5ghz in z1 compact
I don't know if anyone with a Z2 still has this problem, but I did and I seem to have fixed it by not setting my router to VHT80, but to HT40 instead. As a side note, my Chromecast seems to be able to connect to it now, too. My router is a Netgear Nighthawk (R7000) running the latest DD-WRT Kong Mod.

Nexus 9 Wifi 5GHz

Just got my Nexus 9 today from Google Play store UK. Everything seems working ok, except:
I cannot find any wifi 5GHz. I am connecting to my home 5GHz (Virgin Media Superhub) from my HP Pavillion laptop, MBP, iPhone and iPad. But on Nexus 9, I am not able to scan any 5GHz network:
2.4Ghz works fine though:
I have enabled all possible channels in Settings (Wifi Analyzer):
In system Settings, I have tried both Automatic and 5GHz only:
I have performed OTA updated after first time switched on device and connected to 2.4GHz network at work, didn't notice whether there was an issue on 5GHz until I got home.
So, is there a problem with the latest OTA, or simple this unit needs to be RMA?
BR/Richard
Hi
richardman said:
Just got my Nexus 9 today from Google Play store UK. Everything seems working ok, except:
I cannot find any wifi 5GHz. I am connecting to my home 5GHz (Virgin Media Superhub) from my HP Pavillion laptop, MBP, iPhone and iPad. But on Nexus 9, I am not able to scan any 5GHz network:
2.4Ghz works fine though:
I have enabled all possible channels in Settings (Wifi Analyzer):
In system Settings, I have tried both Automatic and 5GHz only:
I have performed OTA updated after first time switched on device and connected to 2.4GHz network at work, didn't notice whether there was an issue on 5GHz until I got home.
So, is there a problem with the latest OTA, or simple this unit needs to be RMA?
BR/Richard
Click to expand...
Click to collapse
Mobile devices don't always support all the 5GHz channels that an access point might use. Try setting the Access point to use the lowest channel, say 36 and see if that works?
Regards
Phil
PhilipL said:
Hi
Mobile devices don't always support all the 5GHz channels that an access point might use. Try setting the Access point to use the lowest channel, say 36 and see if that works?
Regards
Phil
Click to expand...
Click to collapse
Hi Phil
Thanks for the hint. It looks like Nexus 9 only able to see channel 34 ~ 48. My broadband AP has selection of 36 ~ 136, and it was on "Auto Performance" and auto selected channel 100 tonight.
Thanks Phil!
BR/Richard
Yeah.. Only 34-48 Weird why it doesn't support more than that.
Hi
Steffe89 said:
Yeah.. Only 34-48 Weird why it doesn't support more than that.
Click to expand...
Click to collapse
Different countries have different requirements, but often most countries only allow certain frequencies to be used outside, and other frequencies for 5GHz may only be used inside buildings to prevent interference to radar etc.
A mobile device can of course be used outside, so can end up only being setup to use much fewer frequencies than a router designed for indoor use.
Sometimes the router isn't set to the right country, so ends up using frequencies it shouldn't really be using with the mobile device correctly set so ignoring those frequencies or the other way around. 5GHz is a lot more complex for what frequencies can and can not be used, see here http://en.wikipedia.org/wiki/List_of_WLAN_channels and the chart at the bottom, you'll understand why 5GHz devices sometimes don't see each other, it's a lot more confusing than 2.4GHz.
Regards
Phil
Using 5ghz wifi
Hi
To use 5ghz have you tried configuring from WIFI from settings - tapping the three dots next to the magnifying glass - Advanced - WIFI Frequency band.
It gives you the option of selecting 2.4 or 5 or both.
Ron..
PhilipL said:
Hi
Mobile devices don't always support all the 5GHz channels that an access point might use. Try setting the Access point to use the lowest channel, say 36 and see if that works?
Regards
Phil
Click to expand...
Click to collapse
i had the same problem! Thank you so much for the fix!
You should be able to use channels 149-161 as well, it's the channels in between that are set aside for DFS and radar, so many devices don't support them.
Working fine for me on Channel 153 with a Nighthawk R7000.
Sent from my Nexus 9 using Tapatalk
its suposed to work check if your router router chanel are setup correctly
Got mine to connected on the Virgin Media Superhub by changing the channels as suggested. Can confirm it works but very unstable and keeps dropping connection.
I got the same problem.
I got the same problem! I bought my N9 on Nov 11 and used 5GHz without problem until today. In the WiFi Analyzer suddenly can show 2.4GHz only. I have reboot and clear all WiFi App cache & data., still cannot show.
Even connect to 2.4GHz, it took long time to Connect and Authenticate the connection.
richardman said:
Just got my Nexus 9 today from Google Play store UK. Everything seems working ok, except:
I cannot find any wifi 5GHz. I am connecting to my home 5GHz (Virgin Media Superhub) from my HP Pavillion laptop, MBP, iPhone and iPad. But on Nexus 9, I am not able to scan any 5GHz network:
2.4Ghz works fine though:
I have enabled all possible channels in Settings (Wifi Analyzer):
In system Settings, I have tried both Automatic and 5GHz only:
I have performed OTA updated after first time switched on device and connected to 2.4GHz network at work, didn't notice whether there was an issue on 5GHz until I got home.
So, is there a problem with the latest OTA, or simple this unit needs to be RMA?
BR/Richard
Click to expand...
Click to collapse
Been a while, but since this is one of the top Google results, and I've been pulling my hair for a couple of hours without finding a solution online, I thought I might chime in with what I found.
If your N9 is not seeing certain 5GHz channels, what is your model, WiFi or LTE? Also, apparently there is an "international" version of the LTE one, which I just got (I'm in the US) because it was cheap, and I didn't mind it affecting certain LTE bands, but I didn't think it would affect WiFi. In any case, the solution was to simply insert a SIM card from my region (T-mobile US) and the missing 5GHz networks appeared in the list. I don't have a solution if this is happening with WiFi-only Nexus 9's though.
You need to insert the SIM after turning on the tablet. If you turn it on with the SIM inserted, it won't show the hidden 5GHz channels. You can just reinsert it, or toggle off/on airplane mode though.
I also googled to see if there was an app to change Wifi regions, but the only one I found (from XDA) requires root, and doesn't work for this particular problem anyway.
Well I have never been able to connect to the 5ghz channel until now. Finally! Changing the router to use channel 48 for the 5ghz and it is running as expected. I love fixes like this.
Hamm1701 said:
Well I have never been able to connect to the 5ghz channel until now. Finally! Changing the router to use channel 48 for the 5ghz and it is running as expected. I love fixes like this.
Click to expand...
Click to collapse
Do you have a Wi-Fi or LTE model? If you have an LTE model have you tried inserting a SIM card like I said in the post above? I got access to the upper channels which are supposed to be higher performance. From 149 to 161.
whats the highest linkspeed you guys are getting? my nexus 6 gets 866Mbps , i guess it dpends on your AC router specs mine is ac1750 i think
what app do i use to check what channel my nexus 9 is connected to? i think its below 36
andy o said:
Do you have a Wi-Fi or LTE model? If you have an LTE model have you tried inserting a SIM card like I said in the post above? I got access to the upper channels which are supposed to be higher performance. From 149 to 161.
Click to expand...
Click to collapse
Wifi model for me
cobyman7035 said:
whats the highest linkspeed you guys are getting? my nexus 6 gets 866Mbps , i guess it dpends on your AC router specs mine is ac1750 i think
what app do i use to check what channel my nexus 9 is connected to? i think its below 36
Click to expand...
Click to collapse
I use netgears wifi analyzer.

5Ghz Wifi not detecting

Hi,
I just got a new realme 7, and when i search for my wi-fi network it doesnt show de 5ghz, only the 2.4ghz.
I dont have any problem detecting the 5ghz on the PC and others mobile phones.
My router have the wifi 5ghz on the channel 149, so that shouldnt be a problem.
This has already happened to someone??
Best regards,
Rui Pinto
rmmp said:
Hi,
I just got a new realme 7, and when i search for my wi-fi network it doesnt show de 5ghz, only the 2.4ghz.
I dont have any problem detecting the 5ghz on the PC and others mobile phones.
My router have the wifi 5ghz on the channel 149, so that shouldnt be a problem.
This has already happened to someone??
Best regards,
Rui Pinto
Click to expand...
Click to collapse
Hi, it might be that the 5 GHz Band you selected is banned in the country you are right now. Your PC or your other phones might not use this new and annoying feature but your realme 7 does. Try to google which bands are allowed in your country and set your router accordingly.
I had the same problem before with a router I bought in Germany and my phone connected just fine there. Then I brought the router to Indonesia and the same phone suddenly could not see my router anymore. Reason was that my router was set to auto-channel selection and in Indonesia only 4 channels are legal. After choosing manually one of the 4 channels it worked fine again.
Hope this helps

Galaxy S21 Wifi switching issue between 2.4GHz & 5Ghz wifi channels

I have an issue with my galaxy S21 that is not automatically switching between my 5GHz & 2.4GHz wifi network when in close range to the router.
I have smart connect active on my router. When enabled, the 2.4GHz and 5GHz networks share the same network name and password(only one SSID will be displayed), and your wireless device will automatically switch connection to the Wi-Fi band that provides the fastest speed.
My device stays connected to the 2.4GHz network, I then have to turn my wifi off and back on again on my phone to connect to the faster 5GHz network when in range. My S21 is the only device on my network that does not do this automatically.
Anyome else experiencing the same or have a fix for this?
davedes said:
I have an issue with my galaxy S21 that is not automatically switching between my 5GHz & 2.4GHz wifi network when in close range to the router.
I have smart connect active on my router. When enabled, the 2.4GHz and 5GHz networks share the same network name and password(only one SSID will be displayed), and your wireless device will automatically switch connection to the Wi-Fi band that provides the fastest speed.
My device stays connected to the 2.4GHz network, I then have to turn my wifi off and back on again on my phone to connect to the faster 5GHz network when in range. My S21 is the only device on my network that does not do this automatically.
Anyome else experiencing the same or have a fix for this?
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I've seen the same behavior. My configuration is the same as yours. I did a little experiment. I switched off the 5GHz range on the router. All clients switched to the 2.4 GHz range. Then I switched the 5GHz range on again. But even after 30 minutes, my 3 dual-channel android devices Galaxy S21, Galaxy Tab S4 and Galaxy S6 were still in the 2.4GHz range. Then I switched the S21 wlan off and on again. The s21 immediately connected to the 5GHz range and the other two devices followed immediately. Very strange. My WLAN router is a Fritz!Box 7590.
Otherwise, I know the behavior of the devices in that the devices only search for a new connection when the current connection is broken.
Sorry for my bad english, I am German.
Andro Uno said:
I've seen the same behavior. My configuration is the same as yours. I did a little experiment. I switched off the 5GHz range on the router. All clients switched to the 2.4 GHz range. Then I switched the 5GHz range on again. But even after 30 minutes, my 3 dual-channel android devices Galaxy S21, Galaxy Tab S4 and Galaxy S6 were still in the 2.4GHz range. Then I switched the S21 wlan off and on again. The s21 immediately connected to the 5GHz range and the other two devices followed immediately. Very strange. My WLAN router is a Fritz!Box 7590.
Otherwise, I know the behavior of the devices in that the devices only search for a new connection when the current connection is broken.
Sorry for my bad english, I am German.
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Thank you for your response. Samsung need to acknowledge this and apply a fix.
davedes said:
I have an issue with my galaxy S21 that is not automatically switching between my 5GHz & 2.4GHz wifi network when in close range to the router.
I have smart connect active on my router. When enabled, the 2.4GHz and 5GHz networks share the same network name and password(only one SSID will be displayed), and your wireless device will automatically switch connection to the Wi-Fi band that provides the fastest speed.
My device stays connected to the 2.4GHz network, I then have to turn my wifi off and back on again on my phone to connect to the faster 5GHz network when in range. My S21 is the only device on my network that does not do this automatically.
Anyome else experiencing the same or have a fix for this?
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Click to collapse
Hi! These are router problems. Set maximum power for 5GHz and average or minimum for 2.4GHz. Prioritize connecting devices to 5 GHz.
batroc said:
Hi! These are router problems. Set maximum power for 5GHz and average or minimum for 2.4GHz. Prioritize connecting devices to 5 GHz.
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Click to collapse
Can't be a router problem. Don't have an issue with any other device on the network switching between 2.4 & 5Ghz, only Samsung.
davedes said:
Can't be a router problem. Don't have an issue with any other device on the network switching between 2.4 & 5Ghz, only Samsung.
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Click to collapse
I see that a stronger signal is important for communication than fastest band. Samsung has a weaker Wi-Fi transceiver compared to a laptop for example. In my dual-band router, I made settings as described above.
The Android device alone can select the WiFi frequency range. Try to make the 5 GHz band more "palatable" to the cell phone by temporarily blocking the 2.4 GHz band in the router. Then remove the login data from the mobile phone and from the router. Make a restart from Handy. Then register the device again and release the 2.4 GHz band. Then test the behavior.
Please let us know if it helped.
Edit: Make sure to use the original MAC address of the mobile phone when log in.

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