Cannot stay connected longer than a few minutes

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Which device (manufacturer, type)?
Evo 4G

Which firmware is installed?
2.2 Froyo

What version of wireless tether are you using?
2.0.5pre7

What steps will reproduce the problem?
1. Start tether
2. Use Internet for 2-3 minutes
3. PC loses wifi connection

What is the expected output? What do you see instead?
I should be able to stay connected for much longer periods of time.  Also, to 
reconnect, I must stop and restart tethering on the Evo.

Please provide any additional information below.
2.0.2(theory of evolution) works fine for me on Android 2.1 and I do not 
experience these frequent disconnects.  Please let me know if there is a log 
file or some other information that I could provide that might be useful.

Original issue reported on code.google.com by eth...@hotmail.com on 5 Aug 2010 at 3:38

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I'm getting the exact same problem on HTC Evo running Fresh 3.1.0.1 (Froyo)

Original comment by ricardo....@gmail.com on 5 Aug 2010 at 8:30

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does it make a difference for you if you have wpa2-encryption enabled or not?

Original comment by harald....@gmail.com on 5 Aug 2010 at 9:06

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I get the same problem regardless of encryption.

Original comment by ricardo....@gmail.com on 5 Aug 2010 at 10:00

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Changing encryption, SSID, LAN setting, channel, access control, and wake lock 
settings do not have any impact on the disconnect issues.  I also tried keeping 
the phone awake by flipping from screen to screen and I was still disconnected. 
 The phone is also kept close to the PC and gets a very strong 3G and 4G 
connection.  4G on or off doesn't seem to make any difference.

Original comment by eth...@hotmail.com on 5 Aug 2010 at 11:02

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Having this issue also... none of the settings make any difference. Evo 4G, 
Fresh ROM 1.0

Original comment by onlyp...@gmail.com on 6 Aug 2010 at 1:29

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I am having the same problems.  HTC OTA Froyo 2.2, *FINAL*, build 3.36.651.6 
(Rooted) Odexed. [Kernel]netarchy-toastmod, updated for 2.2 - Version 3.7.8b.

Original comment by brett.m....@gmail.com on 6 Aug 2010 at 11:14

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When I get disconnected, the phone has stopped broadcasting its SSID. Maybe the 
wifi nic is being shut off or something. Android Wireless Tether still says 
that it is tethering.

Original comment by eth...@hotmail.com on 7 Aug 2010 at 3:36

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Who of you is using a stock kernel?

Original comment by harald....@gmail.com on 7 Aug 2010 at 8:47

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@harald.mue
I am using the stock kernel - I had not commented on it but I did star the 
issue since I am experiencing the issue as well

Original comment by cmurad00 on 7 Aug 2010 at 9:44

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I'm using a stock kernel and can reproduce this.  It seems that if I stop 
tethering, go turn on my wifi widget, and then start tethering it functions 
again for me.

Original comment by supe...@gmail.com on 8 Aug 2010 at 3:54

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I use the stock kernel with pre7.  I get the same behavior though when using 
pre6 with netarchy's kernel.  From what I can tell, pre6 doesn't work right 
with netarchy's kernel.

Original comment by eth...@hotmail.com on 8 Aug 2010 at 6:03

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Harald I will get the info you requested over ASAP.  As Beezy stated, using our 
ROM (EVO 2.2 built off .6) we can connect until the battery dies and not have 
an issue.  I actually typed this while tethering.

Someone having the issue please download and test on either of our ROM's found 
here - http://forum.androidcentral.com/showthread.php?p=259467#post259467

DO NOT DISCUSS THE ROM ON HARALD'S PAGE.  SIMPLY TEST TO SEE IF IT WORKS FOR 
YOU OR NOT AND REPORT BACK!  If you have any questions about the actual ROM 
take it to the forum linked above.

Original comment by KSmithI...@gmail.com on 8 Aug 2010 at 7:38

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For other people having this problem:

I flashed Fresh Evo 3.1.0.1 Rom, which has a new kernel (FroYo | OFFICIAL 
3.26.651.6 OTA). Then I updated tether to the latest (2.0.5-pre7) and things 
are working fine for me now. I'm not even gonna try netarchy kernel now - as 
long as I can tether, I'm happy with stock kernel.

Original comment by onlyp...@gmail.com on 9 Aug 2010 at 2:52

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I have tried pre7 release on both Netarchy kernel and the kernel included with 
Fresh 3.1.0.1. Both cases resulted in dropped tethers.

Original comment by ricardo....@gmail.com on 9 Aug 2010 at 3:39

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I think I finally figured out what my issue really is.  I installed the AC ROM 
2.2 from August 7, 2010 (not the lite version).  I was still getting 
disconnected.  I installed Wifi scanner from the market.  There are several 
wifi networks in my area using channel 6.  I walked across the street where 
wifi scanner found far fewer wifi networks and was able to stay connected for 
20+ minutes.

Unfortunately, changing the channel in the front-end interface doesn't actually 
change the channel.  I was able to change the channel by editting 
/data/data/android.tether/conf/tether.conf and get it to change channels.  On 
channel 1 I don't get disconnected.  Also, my laptop reports the speed and 
signal quality.  On channel 6 the speed and quality would fluctuate quite a 
bit.  On channel 1 it stays pegged at 54.0 and Excellent.  I have now been 
connected continuously for 20+ minutes.  I will report back if I experience any 
other issues.

Original comment by eth...@hotmail.com on 9 Aug 2010 at 3:54

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@eth - 
I can confirm that by changing the channel in the tether.conf - I went to 11 - 
that it will work without incident

I have been tethered for over an hour now no problems
Thanks for the info!

Original comment by cmurad00 on 9 Aug 2010 at 6:05

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Oh yeah. The configuration-file (tether.conf) is not updated correctly when 
changing the channel. This is fixed now in r478 and will be part of -pre8.

Original comment by harald....@gmail.com on 9 Aug 2010 at 11:07

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Changing the channel with the tether.conf file allowed me to stay tethered 
longer (about 30min) but it still ends up dropping the link. Once the link 
dropped, I could no longer find the phone's SSID in the network list. I used 
channel 2 and channel 11 with the same result.

Original comment by ricardo....@gmail.com on 10 Aug 2010 at 12:57

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-pre8 is now available for download. this should allow to set the channel via 
gui.

Original comment by harald....@gmail.com on 11 Aug 2010 at 8:38

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yeah im getting the same issue.. IM using a  HTC evo 4G and it will connect for 
3-4 minutes and then all of sudden lose the WiFi signal.... im using pre6... 
pre8 doesn't even show up on my WiFi... any fixes out there? im almost on the 
brink of adding the HotSpot feature to my phone..

Original comment by rishicha...@gmail.com on 27 Aug 2010 at 4:05

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Try changing to different channels. I had the same problem and switching to 
channel 1 fixed my problem completely. I have yet to be disconnected. Good luck.

Original comment by david.e....@gmail.com on 27 Aug 2010 at 4:07

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I've tried all the above and my EVO still disconnects after a few minutes. I've 
tried pre7 and pre9. I'm on Baked Snack v1.6 ROM. 

Original comment by jaugenst...@gmail.com on 9 Sep 2010 at 6:51

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[deleted comment]

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Issue 578 has been merged into this issue.

Original comment by harald....@gmail.com on 14 Sep 2010 at 3:20

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Issue 389 has been merged into this issue.

Original comment by harald....@gmail.com on 14 Sep 2010 at 3:21

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Still have this issue. Sometimes it works longer without disconnecting, 
sometimes only lasts a few minutes. Whenever it stops, doing a "stop tethering" 
followed by "start tethering" gets it going again... for a few more minutes...

It does seem to be related to the number and frequency of other networks. In my 
office building, where there are 40-50 other networks running (at least one on 
EVERY channel) it only lasts a few min on average. At home, with only 5-6 
neighbors networks, it might last 15-20 minutes, but always disconnects at the 
end and won't broadcast SSID and allow new connections until restarted.

VERY ANNOYING and makes it barely useful. Tried pre-11, same thing as on all 
previous ones.

Even in a network-congested environment, clearly there's a bug in this thing 
that stops it from broadcasting.

Original comment by onlyp...@gmail.com on 19 Oct 2010 at 9:23

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Herald we have to make a point to fix this, what can we do.. I would gladly pay 
more if this is resolved. Like onlypric above said before it annoying and makes 
it pretty much useless to be disconnecting every 5 mins.. and worst there is no 
error so you dont even KNOW

Original comment by miami.juan on 27 Oct 2010 at 3:54

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@cmurad00 @ eth @harald.mue I would like to try to change channels on my droid 
1 as I am experiencing exact same problems. But I'm worthless without a gui. 
I'm running 2.0.2 (theory of evolution). How do I install -pre8 or change the 
config file?

Original comment by petefinn...@gmail.com on 2 Nov 2010 at 5:53

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I was having same problem until I un froze the 3g hot spot in titanium backup. 
Also changed channels and ip addresses. Hope this helps some of you.. I was 
connected for several hours with no drops.

Original comment by jamesahe...@gmail.com on 3 Nov 2010 at 10:47

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I had this issue with 2.0.5pre11 as well, Seems to have been resolved int 
2.0.5pre12

Original comment by joshonek...@gmail.com on 5 Nov 2010 at 8:00

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Having same issue with 2.0.5 pre 12 now.

Original comment by joshonek...@gmail.com on 8 Nov 2010 at 5:26

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just to let you all know - I have a Droid X with the exact same issue. 
rooted - running stock Froyo 2.3.15 

unfortunately - i don't have the luxury of trying other ROMs... =(

Original comment by bennettvonbennett on 15 Dec 2010 at 7:05

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just to let you all know - I have a Droid X with the exact same issue. 
rooted - running stock Froyo 2.3.15 

unfortunately - i don't have the luxury of trying other ROMs... =(

Original comment by bennettvonbennett on 15 Dec 2010 at 7:08

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I'm having the same issue.  I've had it since 2.0.2.  I'm currently using the 
RC1.  I have an EVO 4G with Sprint stock ROM 3.29.651.5.  It also happened with 
all previous versions of the ROMs since the initial release of the Evo.

I haven't been able to try changing the channel by editing the tether.conf file 
because I can't find that file.  There is a data folder on the sdcard and on 
the root of the device, but none lead to the tether.conf file.  

Can someone help me with this?  How do I find that file?

I'm navigating using Astro and ES Explorer.  Should I be connecting via the 
computer?

Original comment by kahless...@gmail.com on 23 Dec 2010 at 5:32

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Same issue here.  EVO 4G, latest EVO update, rooted (unrevoked method).

Frequent disconnects on every release I have tried (RC2 on down to pre_11).  
Encryption on or off, same problem.  Tried a couple different channels, same 
problem.

Only usable for no more than 5 minutes or so.

Original comment by gary...@gmail.com on 28 Dec 2010 at 9:44

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Problem persists with 2.0.6, Droid2Global, 2.4.330.A956 with Froyo, verizon.
2.0.7 greatly improved, but still drops connected devices.
It is -not- related to voice/data conflict.

Original comment by mathew.j...@gmail.com on 10 Mar 2011 at 5:57

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Same for me. Even with the channel change to 1 or 11, mine drops CONSTANTLY. 
This is on an EVO running the latest release (stock ROM).

Original comment by robro...@gmail.com on 24 Mar 2011 at 4:06

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Changing channels helps, but still drops. Optimus S running Froyo, rooted

Original comment by kglewis...@gmail.com on 13 Jun 2011 at 11:05

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I thought I was having this problem, but found out that it was turning off 
Tether because my WiFi was automatically turning back on. It actually had 
nothing to do with Tether.

To fix, I went to Settings > More Settings > Mobile Networks > Connections 
Optimizer and unchecked the Connections Optimizer. Now WiFi doesn't 
automatically turn on, and Tether stays active.

The downside, I suppose, is that it may stay on LTE longer than normal and not 
automatically sign into my home WiFi, but I fix that with NFC chips.

Sprint Samsung GS3. Model # SPH-L710. Android version 4.1.2.

Original comment by Gladiato...@gmail.com on 9 Apr 2014 at 3:28