5Ghz Wifi not detecting - Realme 7 Questions & Answers

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

Related

Problem with 802.11n connection

My router supports 802.11n but my phones connect only in 54Mbps.
In addtion whenever i set my router to transmit only in 802.11n protocol , the phone can not connect to wifi.
it can see the router but it can not connect
The phone's chip always uses the highest possible compatible protocol.
All you can do is switch frequency between 2.4 and 5Ghz band. (I'd leave it on auto)
You may want to check with another non-similar Wireless-N router. In most cases i've seen this issue the Router wasn't actually N but one of the very early draft Versions (read: pre-beta) of the N-standard and thus had too many incompatibilites with the client for both to understand each other.
This would cause the device to go back to G standard.
ok, how do you stop it using "n". on my HTC I could tell it to use "g" to save power. On my S3, wlan traffic sucks the juice from the battery.
When I turn it to 5ghz band it doesn't find at all my router.my Samsung smart tv works fine with 802.11n , same with my ps 3 and my pc .My router is d link DSL 2740B
Sent from my GT-I9300 using Tapatalk 2
Mine connects at 72mbps on the default setting, check your router.
I download the application andromizer from the market and to the wifi settings I receive the message that my device does not support 802.11n set
I have XXLF5 stock root ROM
Sent from my GT-I9300 using Tapatalk 2
Any suggestion , i use all share a lot and all the HD videos are played with freezes
Guys i have tried many things but still i can not find any sollution .
Please can anybody help????????
my galaxy s connects to 802.11n network to 65Mbps , so i guess it is not my router problem. The strange thing is that the application andromizer says that my device does not support 802.11n set ups.Can somebody download the application and inform what result does he take ?
https://play.google.com/store/apps/...sMSwxLDEsImNvbS5qLnkuZGFkZHkuY3VzdG9taXplciJd
In addition when i set my router to transmit only to n protocol , my mobile find the network and try to connect but i get a certification error
Please answer the question/statement in the second post:
You may want to check with another non-similar Wireless-N router. In most cases i've seen this issue the Router wasn't actually N but one of the very early draft Versions (read: pre-beta) of the N-standard and thus had too many incompatibilites with the client for both to understand each other.
This would cause the device to go back to G standard.
Click to expand...
Click to collapse
My phone connects with the router at 75Mbit/s. The router has a reduced late-draft-N protocol with only 2 antennas so it's correctly using the maximum capacity.
If you have the choice, please try e.g. with a N-supporting Fritzbox of the manufacturer AVM or other similar high-end products. Low-end cheap routers tend to have ****ty hardware.
My router is d link DSL 2740B, I think it is a quite good router with 2 antennas, but as I say my other devices connect fine in 802.11n transmition , my Samsung TV , my playstation 3 , even my galaxy s1 connect with 65Mbps.
Here is my router wifi settings, if you have any suggestions
Sent from my GT-I9300 using Tapatalk 2

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.

SM-T825 WIFI 5GHz instable connection

Hi,
I bought the tab last friday. While playing around I noticed that Wifi does an
endless reconnect-loop when using 5 GHz Wifi. 2 GHz works fine..
Could anybody please try? Turn off your router's 2 GHz and use 5 only.
Watch the Wifi nenu in your tab.
Thanks
joe535 said:
Hi,
I bought the tab last friday. While playing around I noticed that Wifi does an
endless reconnect-loop when using 5 GHz Wifi. 2 GHz works fine..
Could anybody please try? Turn off your router's 2 GHz and use 5 only.
Watch the Wifi nenu in your tab.
Thanks
Click to expand...
Click to collapse
Tried again yesterday.. Only one reconnect in 10 Minutes.. Seems, that 5G WIFI in general somtimes
makes problems.. So, please can someone close this thread?
joe535 said:
Tried again yesterday.. Only one reconnect in 10 Minutes.. Seems, that 5G WIFI in general somtimes
makes problems.. So, please can someone close this thread?
Click to expand...
Click to collapse
My tablet is connected to 5 gigahertz exclusively and has never dropped the connection. You may want to take a look at your router's wifi settings.
I have a brand new Galaxy Tab S3 SM-T820 Wifi version, and I have two wireless routers in my home. One is a RavPower ND007, the other a DLink DIR-813. Both are dual band routers. On both, I have the 2.4 GHz network and 5 GHz networks names differently. Every other device in my home - including a number of Samsung devices - connects to all four networks with no problem.
However, my Galaxy Tab S3 does not. When connecting to the Rav, it shows "Connected, No Internet", and can't communicate at all. It won't even connect to the DIR-813 at all.
It connects flawlessly to the 2.4GHz networks on both routers.
Both of the routers, and the Tab, all have the latest available firmwares/updates.
So it's definitely the Tab S3, and definitely a 5GHz problem.
Not sure how to report this to Samsung, but I'm going to try...
defenitley YES, 5G problem...
wfire said:
I have a brand new Galaxy Tab S3 SM-T820 Wifi version, and I have two wireless routers in my home. One is a RavPower ND007, the other a DLink DIR-813. Both are dual band routers. On both, I have the 2.4 GHz network and 5 GHz networks names differently. Every other device in my home - including a number of Samsung devices - connects to all four networks with no problem.
However, my Galaxy Tab S3 does not. When connecting to the Rav, it shows "Connected, No Internet", and can't communicate at all. It won't even connect to the DIR-813 at all.
It connects flawlessly to the 2.4GHz networks on both routers.
Both of the routers, and the Tab, all have the latest available firmwares/updates.
So it's definitely the Tab S3, and definitely a 5GHz problem.
Not sure how to report this to Samsung, but I'm going to try...
Click to expand...
Click to collapse
Last Sunday I forgot to turn off Wifi 5G on my router and used my Tab S3.... Reconnect each 2 seconds... Super Quality, Thanks a lot to Samsung..
And just to clarify - 5G works with the same router and my Phone S8 perfectly, so it is NOT a rouoter issue...
I've been using 5G exclusively as our SSID is 5G specific and never had an issue with WiFi. Solid connection 100% of the time. Netgear Nighthawk X8 here.
aspexil said:
I've been using 5G exclusively as our SSID is 5G specific and never had an issue with WiFi. Solid connection 100% of the time. Netgear Nighthawk X8 here.
Click to expand...
Click to collapse
Will try to install the latest update this weekend, without any modifications. If 5G still does not work, I will send the Tab to samsungs repair-center, as it still will be covered by warranty.
Either it is a problem with modem-driver or Hardware..
But nevertheless, this is the very first device showing up this problem with 5G.
If Samsung is not capable to solve, this will be my last product purchased from this brand...
I did send my Tab to Samsung repair center in Germany. Will receive it today, but I already know that they did not find any problem, all fine..
Well - but they did not give me a detailed test-report yet... So I dont know what and how they tested..
Will return the Tab to my local dealer for replacement..
I'd like to test with a different SM-T825...
Reading this I haven't seen that you've tried updating your router's firmware. If you haven't try that too. I'm not sure if when you say "install latest update" if that's the router or the tab.
Sent from my [device_name] using XDA-Developers Legacy app
jd1639 said:
Reading this I haven't seen that you've tried updating your router's firmware. If you haven't try that too. I'm not sure if when you say "install latest update" if that's the router or the tab.
Sent from my [device_name] using XDA-Developers Legacy app
Click to expand...
Click to collapse
Just by chance I found out, that 5G works if no SIM inserted. And IF SIM is inserted, it MUST be active. In flightmode and then activate WIFI does NOT work..
This is very suspicious... I hope that SOON we will find a working lineage for the galaxy tab S3...
Galaxy Tab S3 SM-T820 Wifi version and dual band 5ghz
Hmm, I just updated my modem as per better speeds from Comcast, but I also need a new router that would take advantage of the bandwidth and the 802.11ac dual band standard so that I can get to the 5ghz band.
I own a Galaxy Tab S3 SM-T820 WiFi and before I get a new router, I want to know if the WiFi adapter in the Tablet would pick up on the 5ghz band with a new router. Is there any type of updates or drivers or am I okay?
Thank you,
Jon
I'm on 5Ghz all the time. No issues.
Great news !!
I asked the question after I learned about the variety with routers and especially since I found out that my laptop's WiFi adapter only supports b,n,g and that I would need to buy a USB WiFI adapter for my laptop or somehow change the adapter chip inside my laptop to take advantage of the 802.11ac dual protocol.
Thank you, Jon
I have the t825 version, unfortunately I have problems with the 5 Ghz connection.
I hope Samsung releases an update to fix the connection problem and to improve the camera
Athawulf said:
I have the t825 version, unfortunately I have problems with the 5 Ghz connection.
I hope Samsung releases an update to fix the connection problem and to improve the camera
Click to expand...
Click to collapse
Hi, I have the T835 and I have the same problem. It disconnects 5 ghz, problem since I bought it.
Sorry, I'm wrong with thread

Not seeing 5ghz network

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!

Frequent Wi-FI Connect-Disconnect @ 5GHz

Post MIUI Update 11.0.6.0, my device keeps on frequently disconnecting-reconnecting to my Wi-Fi connection, set at 5GHz.
However, if I am using the 2.5GHz connection, it never does the same but I am then forced to a much lesser internet speed.
Please help what and how to resolve this issue as I have already asked about it @ MI Forums, watched a lot of videos @ Youtube.
But no progress!
Thanks
Is the 5ghz signal has good connection? Try to be near the router
Cuz of the signal weak it will disconnect and try to connect to better connection
Mcha01 said:
Is the 5ghz signal has good connection? Try to be near the router
Cuz of the signal weak it will disconnect and try to connect to better connection
Click to expand...
Click to collapse
Everything works fine. Sitting right next to the router doesn't help either. I have replaced the device as well. Still same issue.
This issue is with all Mi and One Plus 7 device I have been using.
MrMacBabbar said:
Everything works fine. Sitting right next to the router doesn't help either. I have replaced the device as well. Still same issue.
This issue is with all Mi and One Plus 7 device I have been using.
Click to expand...
Click to collapse
I think your router might have the problem. Check your router. Try resetting it or just contact the customer care of the router.
Try set your router to use lower channel for 5Ghz .
SamyakJ said:
I think your router might have the problem. Check your router. Try resetting it or just contact the customer care of the router.
Click to expand...
Click to collapse
Like I said before, I have replaced the router as well. Still the same issue persists.
stonedead said:
Try set your router to use lower channel for 5Ghz .
Click to expand...
Click to collapse
Tried it for all the channels available for 5Ghz, still same issue...
Could it maybe because of Android update ?

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