Hi,
I'm having problems with my Galaxy S2. I'm using the device without any problems for more than 3-4 months, using my work and house wifis. The problem started one week ago, without any changes in the work router (there is no MAC restrictions or any other security configurations) I can connect but there is no internet after a while, internet works for seconds or minutes and then, it stops.
- I have checked the sleep policy and is set "Never".
- I have flashed (with full wipe) to different roms versions (KG6, KH1, KH3...) in all of them, it fails once you boot.
- I don't know if in one of the last flashes it changed some about wifi device driver (or rom) that it doesn't change with a new flash.
Now my version is:
PDA: I9100XXKH3
PHONE: I9100XXKH3
CSC: I9100XAKH3
I don't what to do because I'm starting to think that is a phisical problem...but, if yes, it is possible to produce it with flashing?
Thanks in advance!
I have exactly the same issue, and I only get it when I'm on my home wifi router which is really annoying.
I think it's an overall android error as it appears to be happening on a lot of different phones, but not initially when you buy them :/
Have you tried a laptop to connect to your work's WiFi and see if it can get onto the internet.
My work requires a proxy to be used to get out of the network (I had to use AS Proxy).
There are several devices connected and working fine in the Wifi network:
- Galaxy S
- 3 Galaxy S2 of partners
- HTC Wildfire
And also, my S2 have been working for months.
Related
So judging by the quick search, many people have this problem on many different phones, and no solution was found.
I know I've had this problem with my old SGS 1, and even Nexus One.
Same problem on my SGS II, tethering to many different desktops and laptops.
So it seems to be android-specific, or Windows specific problem, really.
Basically, when you tether with USB, first several minutes all is well and speed is good, but in about 5-10 minutes, traffic from the phone just stops.
Phone still shows tethering ON, PC still thinks it's connected, but nothing loads, it doesn't disconnect, it just drops to speed or 0 kbps.
The only way to restore it is to disable tether and reconnect.
Anybody has any idea why would this occur and how to prevent it?
Does it say no internet connection on the network indicator on the bottom right of the notification center? My guess is your carrier has an issue with tethering. I see your on AT&T. Do they have a plan that is specifically for tethering?
Braidonh said:
Does it say no internet connection on the network indicator on the bottom right of the notification center? My guess is your carrier has an issue with tethering. I see your on AT&T. Do they have a plan that is specifically for tethering?
Click to expand...
Click to collapse
No internet connectivity loss is indicated in windows, it still thinks it has a good internet connection. I'm assuming that after a while, it will detect that although there's a connection, there's no actual traffic flowing through it, and will say that there's an issue... but for a long time, it's simply as if I'm connected, but actual speed is at 0kbps.
Browser tries to load pages and times out in 10-30 seconds.
Unfortunately (or fortunately) this definitely doesn't have anything to do with AT&T. I have unlimited grandfathered plan with AT&T and a custom rom, AT&T has no idea that I'm tethering. Internet on the phone is still working fine.
I kinda feels as if the usb tether drivers in windows (RDIS or whatever it's called) simply gives up after a while. Or maybe it's the android tether process that "forgets" what it's supposed to be doing.
you are running a stock ROM right?
RorixRebel said:
you are running a stock ROM right?
Click to expand...
Click to collapse
Nope, latest CheckROM.
But as I've said, I had same problem with Captivate and other ROMs on SGS2 =(
i haven't found a custom rom where tethering fully works....thats why i went back to stock
Have the same problem on BOTH my Huawei ideos U8150 and my HTC sensation.
My wirelessly tethered devices still work flawlessly but my USB tethered desktop disconnects after a few minutes. Screen time out set to Max in case something in the phone went to sleep but no difference. Definitely not a network problem as my operator confirmed but an android (or windows problem) .
I even set USB Port power settings to always stay awake.
Hope we can find a solution to this.
Sent from my HTC Sensation Z710e
i got the same problem under ICS. tried on stock ZSLPE and custom XXLPQ firmwares. both do not work!
my stock gingerbread was able to work flawlessly without disconnection problem on the same pc. wtf is happening?!
I have Samsung Galaxy S Plus.
I am facing exactly the same problem.
Have tried different ROM's around 5, 3 were custom ROM's.
Looks like Android OS issue.
abhijit_net said:
I have Samsung Galaxy S Plus.
I am facing exactly the same problem.
Have tried different ROM's around 5, 3 were custom ROM's.
Looks like Android OS issue.
Click to expand...
Click to collapse
I had this problem on both my Samsung Charge(Stock app 2.3.6), and my Motorola Razr(Stock app 4.0.4). I believe it is a driver issue inside windows. It seems less of a problem on the Motorola phone as I get a few hours of USB tether before it exhibits the same problem whereas the charge started after a couple of minutes. ie. Phone has data and can access web, computer thinks its connected to the web and okay, but any attempts to connect to the internet from the pc fails.
The wireless tether works fine and does not exhibit the same issues so I would suggest you use wifi tether. I don't know if wifi tether uses more or less power than usb tether (assuming your phone is connected to computer and charging). If I get some more free time in the next few weeks I might try and do an analysis.
listlessloki said:
I had this problem on both my Samsung Charge(Stock app 2.3.6), and my Motorola Razr(Stock app 4.0.4). I believe it is a driver issue inside windows. It seems less of a problem on the Motorola phone as I get a few hours of USB tether before it exhibits the same problem whereas the charge started after a couple of minutes. ie. Phone has data and can access web, computer thinks its connected to the web and okay, but any attempts to connect to the internet from the pc fails.
The wireless tether works fine and does not exhibit the same issues so I would suggest you use wifi tether. I don't know if wifi tether uses more or less power than usb tether (assuming your phone is connected to computer and charging). If I get some more free time in the next few weeks I might try and do an analysis.
Click to expand...
Click to collapse
I've had this problems with pretty much every Samsung phone I had.
I have HTC One X now, and it doesn't have this problem. So something with Samsung drivers, I think.
Cool fact - HTC even has a one-click reverse tethering. So cool.
I have the same problem, but can't find out, where (windows or android) is it.
What I have:
Motorola Atrix (rooted with SuperOneClick, stock ROM)
PC with Windows XP x64 without WIFI
The only RNDIS drivers I could find was HTC RNDIS (for XPx64)
Situation:
I'm living in hostel for one month, and there is only WIFI internet here, so I tried to get my phone WIFI to tether into USB
What have I done:
Connected to WIFI over phone.
Turned USB tethering ON.
By default WIFI is not tethered to USB, so I found that turning USB tethering ON creates usb1 network and WIFI is eth0. Then I configured NAT by iptables on my phone to accept and forward connection from PC (usb1) to WIFI (eth0). [usb0 on Atrix is for Motorola Portal, didn't try yet to connect to internet throught portal connection, not USB tethering]
The problem in short:
At the begining everything works fine. But when many connection threads are opened (didn't look for that many count) connection stops. As it was already mensioned, PC thinks it is connected, on phone USB tethering is still ON, even more - ifconfig still shows the connection. The only diffrenece is that "ping 192.168.42.129 -t" on PC (192.168.42.129 is usb1 IP on phone) starts showing "Request timed out" messages. On the other side - from my phone, I cannot ping my PC either. So connection is like broken, no traffic can be passed, but both sides sees they are ON.
After turning off USB tethering, PC sees connection is off immediately and the Local Area Connection #23 is gone. After turning on USB tethering everything comes back to the beginning.
Current workaround (for me):
I am using VPS service, so I open dynamic SSH tunnel over putty, and use it as my SOCKS5 proxy. The worst thing is that not all programs can use proxies, and when I use such program it tries to crash my connection.
Sorry for my english, it is foreign language for me, if anything is not understandable or you need more test from me, please ask, I will try to do my best.
Power Tether Off
DarkDvr said:
So judging by the quick search, many people have this problem on many different phones, and no solution was found.
I know I've had this problem with my old SGS 1, and even Nexus One.
Same problem on my SGS II, tethering to many different desktops and laptops.
So it seems to be android-specific, or Windows specific problem, really.
Basically, when you tether with USB, first several minutes all is well and speed is good, but in about 5-10 minutes, traffic from the phone just stops.
Phone still shows tethering ON, PC still thinks it's connected, but nothing loads, it doesn't disconnect, it just drops to speed or 0 kbps.
The only way to restore it is to disable tether and reconnect.
Anybody has any idea why would this occur and how to prevent it?
Click to expand...
Click to collapse
Hi,
I had the same problem with my Android Phone - P999 running Cyanogenmod 7.2
I had to go into usb debugging screen to adjust the Display power Settings to - Always ON when Charging - Option.
There is probably some power setting in your device that allows you to do that as well.
Basically Power Saving (Screen Off) Powers OFF the Tether.
Ensuring the Screen is ON while Charging (it charges while plugged into a usb port) ensures the Tether stays ON ALL the TIME!
Hope this helps you.
Took me quite awhile of messing around to find the right option.
I do have a similar problem but it's not time-dependant.
Phone:
Nexus 4 mako
AOKP JB-MR1 Build 6
franco kernel 3.4.0 build #121
Situation:
I use FolderSync to backup my sdcard to my Windows 7 FTP server. The reason for doing this over USB Tether is that I get speeds at around 14MB/s instead of 1,2MB/s over WiFi.
I noticed that it doesn't really matter how long tether is connected and nothing really happens as long as FolderSync is scanning the folders on the ftp server at low bandwidth. However once a larger file is transferred the connection is almost sure to break and show the symptoms described by the other posters (interface still up, just no packets being received at either end).
So I assume that some driver (either on Android or Windows) chokes on certain packets and then just dies. Anyone got an Idea how to tell which device causes the problem to investigate further?
I also noticed that if I had ADB enabled before starting USB Tether that the tether connection on the android will be disabled once the failure occurs.
I have problem with my realme c2 when i connect it to pc via usb tethering, it connects it running ok. if i make screen on by playing youtube or any video on it run but as soon as screen sleep it disconnect after some time
I'm a bit late to this, but for anyone else still having this problem:
in Developer options of my phone(Redmi note 11) under Networking, there is an option called "Always keep mobile data on". Turning this on should fix the issue
@Denav
This doesn't work for me. I have a Moto G Power 2021 and that option is already checked.
flyingpreacher said:
@Denav
This doesn't work for me. I have a Moto G Power 2021 and that option is already checked.
Click to expand...
Click to collapse
Were you able to figure out the issue? I'm having trouble as well. Mine disconnects after a certain time period and the times seems to be random. I've played around with the dev options and other cables and still having same issue. It seems to happen with mac and windows laptops.
Hi,
I had no problem whatsoever with my network since 2 days ago when I flashed my dlink dir-300 with dd-wrt.
Since then, I started having problems using my banking app (it gets stuck sometimes during account data retrieval) and more consistently the XDA app fails to retrieve data most of the times.
The rest seems to be ok (on browsers I did not notice connection problems), even though the wifi signal (icon) appears to be quite low even when I am a few meters from the router, while all my other devices (laptop, iphone, blackberry) are working fine.
So, I would need some help to troubleshoot the problem, for example how to check where it gets stuck in the XDA app could help to understand where the problem happens.
I think I set the router with the same values it had before, and I had more trouble with previous FW, so I won't go back there, but I could still try to change some setting if there is some "known" wifi issue with Android devices.
I have a Nexus S with Cybergr v11 ROM and Matrix v19.5 kernel. I repeat, now all other devices are working fine, and this phone was working fine until I flashed the router, so it must be most likely a bad combination of wifi settings (I tried a lot of them already) and Android.
hi everyone,
my phone is a GT-I9300, android 4.0.4, Baseband I9300XXLFB (original, stock), Kernel vers. 3.0.15-782020-user[...], Build number IMM76D.I9300XXBLFB.
it seems that Samsung didn't only change the Search function through the update we got last week, but also disabled Tethering (I think).
the update was meant for the US version of S3 where the Tether option is sold separately by the operators but they also released it for the international version. I found Nexus users complainig abt the same issue after update.
does anyone know a fix for this? can someone reccomend a good custom ROM please
Thank you
original post
"my S3 worked fine untill few days ago...I don't know what changed it, but my Wi-Fi doesn't work anymore. it gets connected to the router but I have no transfers (tried it on my router but also in many "public" Wi-FI). also, none of the Tethering options work (haven't tried them before 2 days ago, only after the Wi-Fi issue came up), none of the Wi-Fi, USB or Bluetooth (Tethering gets connected fine, but the connection has the exclamation mark and I have no internet on my PC). It might have happend after Samsung's update fix we got few days ago for searching or something, but I'm not sure."
Wi-Fi is working after I've done a reset on the router...but I don't understand how the hell my router affects other Wi-Fi connections. There seems to be a software glitch with the Wi-Fi somehow.
marius1683 said:
hi everyone,
my S3 worked fine untill few days ago...I don't know what changed it, but my Wi-Fi doesn't work anymore. it gets connected to the router but I have no transfers (tried it on my router but also in many "public" Wi-FI). also, none of the Tethering options work (haven't tried them before 2 days ago, only after the Wi-Fi issue came up), none of the Wi-Fi, USB or Bluetooth (Tethering gets connected fine, but the connection has the exclamation mark and I have no internet on my PC). It might have happend after Samsung's update fix we got few days ago for searching or something, but I'm not sure. my phone is a GT-I9300, android 4.0.4, Baseband I9300XXLFB (original, stock), Kernel vers. 3.0.15-782020-user[...], Build number IMM76D.I9300XXBLFB.
I tried the *#0011# command and switched off the "WIFI Power Save Mode" but that didn't fix it either.
I suppose it is a software problem as the phone (apparently) worked fine fot 3 weeks (I got it on the 7th July).
did/does anyone have this issue? please help me fix it and also, please reccomend a good custom ROM (or "the best" if there is such thing ).
Thank you very much for any help
Click to expand...
Click to collapse
According to your description, I'd say that your wifi chip's done
I'd call to local service/place you purhaced the phone and explain the problem.
Warranty should cover that kind of problems.
XDA, you really are my last hope.
I use my phone as my primary internet device. Tethering works fine for 15 mins and then one of two things happens:
1) Computer doesn't load webpages (stuck on looking up....). Have to turn my computer's wifi off and on again.
2) Tethering is still 'on' but the hotspot vanishes (have tested this on more than one computer) have to turn wifi off and on again.
Problem number two is by far the most frustrating but both are seriously annoying as I cannot play online games or download files and my girlfriend work is constantly interrupted.
I have tried:
1) using FoxFi - Works but same issues as native tethering software.
2) Rooting and using barnacle, wifi tether, OpenGarden WiFi (get 'could not set ad-hoc mode of wlan0: op. not supported on transport endpoint.)
3) Turning off fast dormancy (no difference).
4) Setting Wi-Fi to always on.
5) Turning off Wifi Power save mode.
6) Searching google, asking reddit, searching XDA, crying.
If you can fix this once and for all, I'll send you $10 over paypal (if that's not against the XDA T&Cs). I'm a poor student, but I am THAT desperate.
Many thanks.
New Samsung Galaxy S3 (International GT-19300).
UK 3 Network - The One Plan.
HSPA+ Area.
Stock firmware, Android 4.04
Build: IMM76D.19300XXBLH3
Rooted (problem both before and after root)
Tell me if you need more information.
And I will press that thanks button, you have my word!
Last one.
I don't have a solution for you, but I can share my experiences regarding the same problem you are having. I also tether a lot and for that, this phone has been awful thus far. I have pretty much given up on wifi tethering for now and am tethering using bluetooth since that seems to be working MUCH better for me. So do give bluetooth tethering a try too if it's possible for you.
I get random drop outs in my mobile data connection - this happens all the time, also when I'm not tethering. I have been trying out different modems to help with this, and now I have found a modem that works pretty well for me. I'm using XXDLIB firmware (Jelly Bean) and have found that the modem that works best for me is XXDLI4.
Maybe through additional testing of different modems I would be able to find one that works even better, but I've been doing this for a long time now and getting pretty tired of it!
Wifi tethering for me on DLI4 modem is now OK - not great, not even good - just OK. It feels much slower than bluetooth tethering and is still unreliable so I go with bluetooth for now.
Sorry if this wasn't helpful at all... :angel:
S3 wifi not working
(repost this to this section, adviced from xda assist)
I just purchased second-handed Samsung Galaxy SIII GT-I9300 (international ver) to replace my old Samsung Galaxy Mini (GT-S5770). I purchased this cuz the price tag on one of local stores is just too tempting me to buy one, plus, giving me free true leather phone case! (though my target was Acer Liquid Z410, but not available on local stores and i dont know how to buy online as well)
The phone conditions, well, do have some minor scratches at the sides but the previous owner was middle-age man, and im not so picky with that detail.
The phone is great, well, except, the WiFi isnt in good condition in normal uses. (means, i can still uses them. details in below)
The S3 properties,
Android 4.3
International ver, GT-I9300
16 GB ver (which i found out some cases with unbootable S3, with 16GB ver only)
unroot
all related to network setting (includes mobile network, Bluetooth network, WiFi) is in default
The problem is, the WiFi.
The phone does detects WiFi hotspots or access points from far (in fact, it can detect my neighbour's home wifi even though is quite far, well, maybe around 20-30m, well, the signal was weak though).
SInce my home wifi is hidden, i pre-set the wifi. but, it wont even connect or even detect my wifi. My Internet TV with WiFI Direct do detected though (no internet connection since it wont host internet to devices who connect to the TV)
But, when i place my S3 like below 700cm range, my S3 detects my wifi and connects like normal devices. But when it get like further than 1m, the WiFi does not receives any data at all and after a while, the WiFi disconnected.
After i bought this phone, i hard factory reset my S3 (before reset, i didnt test WiFi and also from my uncle's advice cuz my phone seems a bit slow, well, he used to have S3). I didnt had a chance to test WiFi until i got home and tried to connect my WiFi.
I've tried many method i found online, (again, the WiFi only works if i put my S3 side by side with the access point/s)
Reboot router (I always reboot them cuz the router sometimes bugging) = not working.
Forget the network in S3 and preset. = not working
Tied with static IP address (connecting to my hidden network)(with google DNS) = not working
Enabled unhidden, open wifi profile on my router, try connect. = not working)
Connect to my TV's WIFi with WPA security = not working (tried to connect but just fails)
Tried *#0011#, Wifi, turn off power saving = not working
Things i havent tried,
reset again the S3
revert to factory firmware (actually, i tried but Kies 3 just wont work at all... it said that the device cannto be initiated or similar... so, the S3 didnt do anything)
using Odin to revert to stock factory rom
using Odin to update to unofficial kitkat rom
before im going to use Odin, which i dont ever done before, do you think that reset this phone to factory setting will fix this problem?
Try changing your router's channel.
yoahmad1995 said:
Try changing your router's channel.
Click to expand...
Click to collapse
if you mean router channel, the N radio, G radio and B radio,
sorry,
mine only supports G. (or maybe B and G. but for sure, no N)(dont forget that i did tried with my tv as well, since my tv has wifi direct but also be connected with usual wpa security. by the way, im pretty sure the tv radio channel supports b, g and n, and usually, they uses N channel for devices that supports N channel).
if thats not the case, then what do you mean?