hello, as the topic suggest my galaxy s 2 's WiFi is PRETTY weak.. i hv goggled and found many suffer from this problem, but i couldn't find any solution. i was hoping someone over here could guide me to some script or update to fix this..
i noticed this problem when i step out of my room bars go down to 2.. and if i go little further with galaxy s 2 then no signal, my iphone 3gs and laptop catches signal fine at distance..i have tired routers at different location's, for example my friends house, in university, so problem definitely is in galaxys2.. it may it requires some other kernel or modded stock kernal.. i dont know..
btw i was on stock ROM same problem existed there, now i am Cyanogen Mod 7.1(2.3.7) and its here too..
please let me know what more could i add that might help you guys here figure out a solution.
thanks
Well, the wifi is not the strongest ever seen but i can use it outside my house (for about 10-15 meters away) without problems
Inside the house i have full/almost full signal in every room (on every rom tbh)
So yes, it's not strong but at my eyes, looks like yours is even weak than normal
mine also has a weaker signal than my other devices. However, I ran speedtest on all of them and the galaxy s2 has the same download and upload speed as the others. This is in spite of having zero or one out of three bars. I read in another forum that the wifi signal indicator of the galaxy s2 just shows a more accurate signal strength and the others just increase the indicators to make you believe that it has a strong signal. :-D
Maybe your router wifi transmitter is weak. Also you could try a different wifi channel on your router.
Same issues here
I just got GSII from sprint and i still have my other 2 EVOs and i loose wifi signal when i go downstairs or other rooms while my EVOs get nearly full bars and speed.I never remember having any wifi issues with my EVOs.I also have the same no or weak wifi issues at work while no other phones at work have such wifi signal problem.any suggestions...?
One thing I tried which helped a little was download 'WiFi Alanlytics' from the market and select your SSID and it will advice which is the 'Best' channel strength for your router.
Ant
poor signal
Hi i have same problem with poor signal.Any solution for this !? Try connect with 5 different router same stuff....flash with many different roms and no results any ideas ?
Sparksltd said:
Maybe your router wifi transmitter is weak. Also you could try a different wifi channel on your router.
Click to expand...
Click to collapse
I agree completely, but another thing you should keep in mind is which modem is the best for you, i went though and tested 20 modems and ended up with LP6 which give me good range, speed, and battery, i suggest you test different modem types
Use THIS app to check, is highly accurate
another thing worth mentioning is that i recall once reading that all kernels will not be compatible with all modem types, I use Siyah kernel, GT i9100T, and BULP6 modem
hope that helps
Zamrock said:
I agree completely, but another thing you should keep in mind is which modem is the best for you, i went though and tested 20 modems and ended up with LP6 which give me good range, speed, and battery, i suggest you test different modem types
Use THIS app to check, is highly accurate
another thing worth mentioning is that i recall once reading that all kernels will not be compatible with all modem types, I use Siyah kernel, GT i9100T, and BULP6 modem
hope that helps
Click to expand...
Click to collapse
*Modem/Radio/Baseband is all the same thing and can be seen by going to Settings - About Phone - Baseband. It's basically a driver which receives and sends Mobile Network signals as well as handling switching between GPRS, 3G, HSDPA etc....... (but not WiFi connection, that and switchover between Mobile Network and WiFi is handled by the kernel).
Whilst you are absolutely correct in saying modem has nothing to do wifi whatsoever, why revive a two month old thread ?
Related
Can anybody confirm, that wifi (wlan) roaming, between different access points on the same SSID network and different channels, is working?
I have at home 2 access point (one is on channel 1 and another is on channel 6) and my SGS2 wouldn't switch from one AP to another when I walk in the house. My son has SGS1 and wifi roaming works for him. Before I had Nokia N95 and I had no problems with wifi roaming. The same thing, when I'm at work. We have 3 AP's (all three Cisco) in the house and switching between them doesn't work. In order to switch between AP's I toggle WiFi off then back on again.
I went from KE2 to KE7, now I'm on Litening ROM 1.5, but it's all the same.
I tried everything, I can think off (set AP/router to b/g/n, only b, only g, only n, set different channels, set different security,...tried also flashing different modems on the phone...) but for me wifi roaming is not working...
Any ideas?
Anybody?
Nobody? Realy?
That's realy strange...
Nobody?
I really can't believe.... almost 90 views and no answer...
I'm I the only one with this problem?
While you are moving round your house do you lose connection, i think that your phone will be connected to the strongest signal.
mine loses signal when i leave home and auto picks up an usecured signal down the road.
I don't quite understand, what you mean...
When I walk in my house from basement to the top floor, my SGS2 is always connected to the router in the basement. When I come to the 2nd floor, where I have another Access point, it should switch to that AP, but it wouldn't. Instead, it's still connected to the router in the basement, which (in the Wifi Analyzer) shows -90 db (and the AP on the 2nd floor shows -30). When I switch off Wifi on my SGS2 and then back on, then it will connect to the AP in the 2nd floor. But then, when I walk back, down to the basement, it stays connected to the AP on the 2nd floor, even when I stand next to the router in the basement and Wifi Analyzer shows -28 db on the router.
I can confirm that wifi roaming is not working (at least for me). The phone stays connected to the same old AP all the time even with really poor signal quality.
Unless it loses the connection it doesn't connect to the best AP available.
Tried it on several ROMs (multiple stock roms and now I am on Cognition 1.20), same behaviour every time.
Exactly the same with my SGS2.
I also tried several ROM's, from original KE7 to latest KG3, now I'm on Lite'ning 3.2, and it doesn't work...
That's really strange...
Exact same issue here. Tried three different stock ROMs and a couple of modified ROMs and no change.
I'm even running Cyanogenmod now and the problem persists! How does that work? Does Cyanogen use the Samsung source-code for the Wifi driver?
It's really pissing me off. I basically cant use Wifi on the end of the house I use it most in without cycling the Wifi on/off switch as I pass a different AP on my way into the house to get there!
The most strangest thing is, that nothing can be found on the web about this issue (only one on code.google.com)...
And also here, on XDA, millions of posts, but nothing about wifi roaming...
Are people not using more then one AP/router?
zxcslo said:
The most strangest thing is, that nothing can be found on the web about this issue (only one on code.google.com)...
And also here, on XDA, millions of posts, but nothing about wifi roaming...
Are people not using more then one AP/router?
Click to expand...
Click to collapse
Yes, I am sure most people use one AP/router - that is why you are not seeing too many responses. The source code is from the samsung source drop, the drivers were written by broadcom. We at teamhacksung have not modified them for CM7, so the behavior would be the same across all ROMs that are using the drivers unmodified.
So, that means, we are stuck with this, until Samsung fix it?
I still can't believe, that the best phone on the world (at the moment... ) has such a flaw...
What about trying driver for Wifi from SGS1? On SGS1 wifi roaming works beautiful (my son has one and he is laughing at me all the time ).
Is there much difference between SGS1 and SGS2 in the wifi handling?
Wow - this is an annoying issue to have. Yup, i have 2 routers too, and it really sux to be in an 'overlapping' zone and see the SGS2 connect to the router that is further away.
Is there nothing that can be done about this?
MorRoquen said:
Wow - this is an annoying issue to have. Yup, i have 2 routers too, and it really sux to be in an 'overlapping' zone and see the SGS2 connect to the router that is further away.
Is there nothing that can be done about this?
Click to expand...
Click to collapse
I'm very pis..... angry, when I'm in my room/office, and see, that my phone is connected to the AP, which is in my son's room, two floors above me... and I'm sitting 1m away from router...
Yesterday I tried in my office with 3 AP's with my friend's SGS2 with original stock ROM KE2 (he didn't change nothing on the phone).
Result:....... the same as with my SGS2.... wifi roaming not working....
Any news about wifi roaming?
How annoying!
I'm having similar problems at work.
At home connectivity's fine with just 1 AP. Here at work there are about 10 Cisco APs. Every now and then I have to turn WiFi off and on again and I use the original stock rom.
I have exactly the same problem, it always connects to the same AP, not the one with the better signal... very annoying! How difficult is it to fix that?
Morghus85 said:
I have exactly the same problem, it always connects to the same AP, not the one with the better signal... very annoying! How difficult is it to fix that?
Click to expand...
Click to collapse
Which channel does this AP have?
Hey Guys
I was wondering. Is the bad wifi signal strength on the HTC legend unfixable ?
I am currently standing 5 meters away from my Wireless router and only getting "good" sometimes "fair" reception when i got 2 meters to the left and into my kitchen whereas with my laptop I can go out into the yard of my appartment complex and still get "good" reception - out there the legend can't even pick op the signal.
I'm running CM 7.0.3.
(And also has problems with getting a gps fix even when lots of satellites. And overly exposed flash photos - but that's another story - maybe these will be fixed in the next CM)
Have you tried different radios?
As far as I have been told the radio firmware is for the GPS since the WIFI is on a separate chip ?
But have tried several deffirent radios to try to fix the GPS issue I also have without any luck.
I had tried every possible setting on my router to increase the signal strength on the razr but none worked......however surprisingly and inexplicably when I changed the placement of my router and kept it on the floor i.e. around 6ft below the razr, the wifi signal suddenly jumped....hence I took this idea a little further and after some experimentation I saw that placing the router a few feet below the razr actually dramatically improves the reception even if you are at a significant distance away from the router and my problem is solved...
Just thought I should share this bit of information as it might help all those who are facing wifi reception issues with the razr
Sent from my XT910 using XDA App
Your router is support G or N ?
Try to change the method security, for example WEB or WAP .
medo18 said:
Your router is support G or N ?
Try to change the method security, for example WEB or WAP .
Click to expand...
Click to collapse
i tried everything...changing the security, switching wireless "N" Off...every possible thing but the signal strength just dint improve...and it was the same at home and office with diff routers...
Great tip JainB, thanks.
This problem before OTA or after ?
-Try with another router.
OR-
-Dont touch the device and look the signal strength during the contacting.
What is difference between touch and non touch.
medo18 said:
This problem before OTA or after ?
-Try with another router.
OR-
-Dont touch the device and look the signal strength during the contacting.
What is difference between touch and non touch.
Click to expand...
Click to collapse
Diff between touch and non touch is generally 1 bar...Tried with Two Diff routers at home and office with no difference in signal strength...Elevation change worked like a charm giving me more signal strength than my BB Torch...
This problem before OTA or after ?
i thought this would be the best place for a problem i started having about2 weeks ago. i am on vodafone uk.
i used to get 3-4 of the 4 bars reception while sitting at home(as an example). suddenly i was getting 1-2 and sometimes none (all blank).
i thought i would try and eliminate things one by one so here is what i did...
checked with my sim in another phone and another sim in mine. from memory the other phone having my sim was slightly down but not much and my phone with the other sim didnt really change much.
i checked with vodafone by calling them, they said they couldnt see any problems on the network, birmingham uk, but would send a new sim, after getting the sim activated when it arrived, no better. their onling forum is still waiting for a response back from their technical whether there is any problems. i dont see how the phone department can instantly tell me when the technical need many days to find an answer.
i thought it could be the rom so i first updated lite'ning rom to resurrection remix and then to a later version of RR and no change. the newest version of RR has a different kernel, flux i think, than the siyah in the 2 previous roms but again that different kernel didnt improve it. lastly i even changed the modem/radio trying to different ones to the default, xxlpx and kh3 and again no difference.
the only thing that improves it is turning 2G on instead of 3G. the bars go back up to 3-4. even with 3G on previously as i never changed it before it was always fine.
i know this is a long post but i wanted to be thorough as i really appreciate any help as i am now lost as what could improve this.
Mispost
anyone?
I have been having a similar problem on Three for about five weeks now. Despite numerous reloads of Android and modems etc I was getting no results, 5mb dl speeds have dropped to around 150kb despite having a good signal.
After many many calls to so called customer service I have discovered that a new cell tower near to me has been activated as part of the network expansion program and because this cell is closer to me than the one I used to connect to I now get a stronger signal from this so my phone always chooses this. Problem is this cell has only got a 2mb feed INTO it, its a TMobile/Orange cell now being shared with Three....so I am basically fooked.
Check with Vodafone if they have done anything similar recently near you. Three are adamant there are no problems my end, technically they are correct I suppose, its all working, I just cant access the net without it timing out constantly now.
Atb
SST
I am having the same issue with my phone. I get only one bar (sometimes none!) whenever I'm home & I'm on WiFi; however, I get full signal strength when I'm out & on 3G.
Sent from my GT-I9100 using XDA
i thought it could be the cell tower thing as there is only 1 vodafone one in quite a large radious, about 2 miles, and many of all the other networks. i dont know why vodafone are happy to have 1 compared to at least 3-4 each for all other providers.
this morning i drove that 1 mile to the vodafone mast and ran fresh network and surely that would have connected to that as i was 5 meters from it. still no better. ??
Just try NELP3 modem once... I had done similar issue once.. Now my network is better..
is nelp3 okay for uk though?
Try flashing another Modem. Im from Germany but i had similar problems. A new Rom would do too i think
All
Sent from my MB525 using Xparent Cyan Tapatalk 2
Christiancs1969 said:
All
Sent from my MB525 using Xparent Cyan Tapatalk 2
Click to expand...
Click to collapse
not sure what you mean with 'all'
Number of options, tower may be having problems, maybe some form of interference, try a different modem, try different sum card if you have one spare?
Sent from my GT-I9100 using xda app-developers app
i do have the same problem as above, no signal in the building and 50% signal outside building. I swithch my SIM with fren's (he use another telco), and his SIM not work on my S2 and my SIM work on his phone (not SIM issues).
I tested many modem as recommented , LP2/LP3, LP9, LPX, KI3, KI4, KF2, no luck.
I flash different ROM, (some old version that work before), from CM9, AOKP, Sammy. no luck.
I restore old back up ROM. no luck
Fix permission, no luck.
any advice ?
OK next step is to flash a different modem
Sent from my GT-I9100 using xda app-developers app
i've tried a few modems including the ones people believe better, all have this problem so far.
it may be the network mast in my case. i discussed with vodafone what 3G mast i was connected to and then which 3G mast is next closest. i then went right next to that other 3G mast and the signal was full bars, no fluctuation at all. this surely means it is either, 1-the network mast i keep locking to having problems or 2-all the modems i have used favouring battery over strength and not getting enough power to get a good signal.
is there a way of finding out which modems are better for battery and which are better for signal strength?
Umm not that I know of, best thing to do for that is either research the modems for better strength or battery etc, or just test some yourself, however that is time consuming,
Personally I think it is just the mast having problems, however I may be wrong
Sent from my GT-I9100 using xda app-developers app
i thought i would add a little research to this thread, not too much but just my experience with 3 specific modems.
the background is that recently i have started getting very poor network signal as i believe the closest 3g mast to me is having problems. if i turn to 2g its better as the phone then connects to the closest 2g tower which gives better network signal.
i know that a modem should be left for 2-3 days before judging but i thought that if a modem is currently better than another then that is only likely to stay the same with time as long as they were given the same short period of time.
i used the app network signal info and did 3 5 minute tests for each modem and then averaged the percentage of the signal and also averaged the -dbm also.
i first used the modem i currently had on there, BUKI1
- average percentage was 19%
- average -dbm was -103
both very poor scores
the signal was very jumpy up and down also
i then flashed the custom modem, i think by krs007, M250S
- average percentage was 44.6%
- average -dbm was -90.66
obviously a huge increase
the signal was very steady, hardly changing from that average
lastly i flashed NELP3
- average percentage was 30.66%
- average -dbm was -97.33
better than at first but not as good as M250S
i am now going to let M250S bed in for a few days while keeping my eye on here for how NELP4 performs but so far i have a huge increase in signal in a previously very poor area. as this is also due i believe to the tower having problems, hopefully it will only get better.
Try downloading OpenSignalMaps from Google Play Store. For starters, you can determine the approximate location of the offending cell tower (if the cell tower was indeed the culprit). Sometimes, i realise that the phone tends to stick to certain cell towers when others are in closer range and could purportedly provide a better radio link. For this, the app provides a refresh feature that allows you to manually trigger a cell tower refresh. I am aware that most apps requiring connectivity have this feature but i don't suppose you can call the refresh on trigger.
Hi Marc
Tracked down a copy of M250S(dont know if its the same as you have installed though), and very briefly, as in 30 secondsish, I had 4 bars and dl`s around 5mb again!.But midway through it dropped out and that seems to be the pattern. Seems to be having problems locking onto a cell, signal bars frequently grey out, maybe its a compatibility issue with CM9, I dont know.
Anyway, let us know how you get on,
Cheers
Chris
it probably is the same as i dont think any others have that name.
it probably just needs to bed in for a few days. i have noticed mine go between 3g and H quite regular but it always does that, i havent had any dropped calls or similar so far.
Hi All,
I am having a strange problem with my S2 since last few months. I am from Mumbai, India and using Airtel network. There is a spot in my apartment which has very poor network reception of Airtel and I face issues whenever my cell is in that spot for a while. It happens that whenever I take my cell in that area, it starts losing signal bars till no bars are highlighted on the status bar at the top. It keeps showing zero bars but does not show "no signal" icon. Then, after keeping my cell in that spot for a while when I bring it in a better connectivity spot, signal bars start increasing and it appears that my cell has better reception again. However, if anyone tries to call me or I try to call anyone, they get "Out of coverage area" message or I get "Network registration failed" message respectively. I am having this problem since the day I started using Airtel and have tried a lot of remedies but only thing that works is rebooting my cell. I have tried using OpenSignal app to reset my connection whenever my cell comes back from the spot but even that fails to revive it and ultimately I have to reboot.
Has anyone faced such an issue and any ideas about a fix? Does it look like an issue with my cell or could it be an issue with my network provider? I would prefer not to root my S2 since I have 3 years warranty on it but if you think that it's the only way out of this, please let me know your opinion.
Thanks.
Sounds like a carrier issue to me. You pretty much said exactly that yourself when you said 'There is a spot in my apartment which has very poor network reception of Airtel and I face issues whenever my cell is in that spot for a while'.
That's normal in many buildings. Particularly if the network coverage in your area is borderline or poor. I have a similar issue in my house, in a few rooms I get no bars & sometimes coverage drops out completely, whereas in my loungeroom/dining/kitchen at the back of the house I get good coverage (for me, anyways).
You could try different modems, which might improve things. You don't have to be rooted to flash these, you can flash them using Odin. Tho it is easier to flash them with CWM if you're rooted.
I use to had the same issue with my 3 carrier at my desk in the office, and still on 2g services. I but since last month they already improved to hsdpa network added more bts and now my blank spot became H.
Yes you may try to change other service providers
Sent from my GT-I9100 using xda premium
Thanks for your suggestions guys. Yes, it might be only related to the carrier. But, I think that if signal goes down to zero and then when my cell is back in better coverage zone, shouldn't the modem take care of network registration by itself? My problem is that it doesn't. I have to reboot my cell every time after I come to know that my cell is showing signal bars but is not actually registered on the network. If I reboot my cell, everything becomes normal and so if it was just an issue with the carrier, shouldn't it continue like that even after reboot? If I think about it logically, I think following should help me out:
1. Try out a different cell for a few days and see if I face this issue or not.
2. If answer to 1 is no, then try out different modems on my S2 and see if that helps.
Actually, I just wanted to check if anyone else has faced this issue and figured out that something is not right with S2 drivers or something? That would help me with quick resolution of my problem.
Sent from my GT-I9100 using XDA
Yep, your logic is sound ;-)
One thing tho. With regard to trying your sim out in another phone, you have to keep in mind the radio hardware is obviously different in different phones. And what that means is (and this is something I've observed on XDA), chances are you'll find the sim works perfectly in the other phone & you have no issues at all. This might be due to the actual equipment your carrier is using in the cell tower(s) you're close to, also the frequencies that gear is using might also be playing a part in your problems.
So definitely try it out in another phone & see what happens, but you could do worse than try out a bunch of modems in the S2 & see if that improves things.
crypticlight said:
1. Try out a different cell for a few days and see if I face this issue or not.
2. If answer to 1 is no, then try out different modems on my S2 and see if that helps.
Actually, I just wanted to check if anyone else has faced this issue and figured out that something is not right with S2 drivers or something? That would help me with quick resolution of my problem.
Sent from my GT-I9100 using XDA
Click to expand...
Click to collapse
Those are carrier issues, and maybe even the material of the constructions, in my house there are rooms where there's almost no signal at all, and in the living room it's ok, you should try to see in which tower you are connected maybe thats the problem
I have also had these problems on various networks here in Australia. If you don't need the data network, you could try using 2G only option. But that's not really a fix, is it? I suggest you try a pre-paid SIM from another network provider, to test them out first, before re-contracting.
Good luck. :fingers-crossed:
MistahBungle said:
One thing tho. With regard to trying your sim out in another phone, you have to keep in mind the radio hardware is obviously different in different phones. And what that means is (and this is something I've observed on XDA), chances are you'll find the sim works perfectly in the other phone & you have no issues at all. This might be due to the actual equipment your carrier is using in the cell tower(s) you're close to, also the frequencies that gear is using might also be playing a part in your problems.
Click to expand...
Click to collapse
Yes, I was also thinking about it. It could be the combo of cell tower and S2 that are not liking each other that well.. And, if that's the case, I really hope that the issue can be resolved by switching modem drivers. I will have to do some what-ifings to nail this down now.
I like the other suggestion by HotrodHarry on trying out 2G only option - not the best way out but will help me in zeroing down on the cause.