Tethering drops internet connectivity randomly

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Which device (manufacturer, type)? G1 and MT3G

Which firmware is installed? 2.2 RC1

What version of wireless tether are you using? 2.0.5-pre7

What steps will reproduce the problem?
1. Start tethering
2. Connect computer
3. Surf internet

What is the expected output? What do you see instead?
My internet connection will drop to limited or no connectivity, or drop 
internet speeds to near 0 and then drop connectivity. 

Please provide any additional information below.
Running command window "Ping google.com -t" shows connection working:

Reply from 74.125.45.99: bytes=32 time=210ms TTL=45

It seems under high load, the connection will drop out and produce a Very high 
ping time to the server when connectivity comes back

Reply from 74.125.45.99: bytes=32 time=217ms TTL=45
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Reply from 74.125.45.99: bytes=32 time=2224ms TTL=45
Reply from 74.125.45.99: bytes=32 time=254ms TTL=45
Reply from 74.125.45.99: bytes=32 time=192ms TTL=45

Limited or no connectivity lasts usually from 5 seconds to a few hours. 
Disconnecting and reconnecting to connection makes no difference. Results have 
been duplicated on more than one computer with updated drivers, etc and more 
than one handset, a G1 and MT3G both are running Froyo and running the latest 
android-wifi-tether

Original issue reported on code.google.com by setn...@gmail.com on 11 Aug 2010 at 8:56

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What happens if you ping the default-gateway (your phone) from your client 
(your pc).

ping 192.168.2.254 -t

Timeouts?

Original comment by harald....@gmail.com on 11 Aug 2010 at 3:25

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I get a similar problem on my Samsung Captivate (Galaxy S) using pre-7 and pre 8

It would drop data connection on both my phone AND my computer (I cant go to 
any website).

I do not get the "Limited or no connectivity" issue.

Only way to solve the data issue is to disable Wifi Tether and re-enable it.

Original comment by nguyener on 12 Aug 2010 at 3:30

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When I ping the default gateway from the client, I get no timeouts when 
connectivity drops. I ping both the default gateway and google.com 
simultaneously and when the connection to Google timeouts, the ping time for 
the default gateway shoots up to something like time=2536.

@nguyener That is exactly what I get, but if I let the computer "Timeout" long 
enough, it will throw a "Limited or no connectivity" in my Event Log.

BTW, both of the phones are being connected to Windows 7 computers, one is my 
Gateway netbook running Win 7 Home Prem, the other is my desktop running Win 7 
Ultimate

Original comment by setn...@gmail.com on 12 Aug 2010 at 6:21

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If you are able to ping constantly the gateway there is nothing wrong with the 
connection between the phone and your client-pc. So I would say the problem is 
the mobile-data connection. What signal-level do you have where you have done 
you ping-test? Settings -> Telefon Info -> Status -> Signal strength

Original comment by harald....@gmail.com on 12 Aug 2010 at 8:05

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Yes connection drops for me too, using 2.0.5-pre7 on my Netarchy rooted (HTC 
OTA Froyo 2.2, *FINAL*, build 3.36.651.6 (Rooted) Odexed), HTC Evo 4G phone, at 
random times. So at least once an hour I have to stop and restart tethering app 
on my phone. On my laptop the wireless network is gone when I check after I 
lose connection.

I just installed 2.0.5-pre8 and now waiting to see if it's the same problem, so 
far so good (30 minutes)

Original comment by RFeuerl...@gmail.com on 12 Aug 2010 at 8:18

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My signal strength is a constant -73dBm 20asu. I have a 3G cell tower no even 2 
miles from my house on top of the mountain, so I always have 5 bars of 3G. My 
wife's phone (MT3G), same thing, 5 bars, -73dBm 20 asu.

Original comment by setn...@gmail.com on 13 Aug 2010 at 2:04

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Any ideas people? I even have trouble with the USB tethering as well. My 
connection will be fine for a minute or two, then no data connection on the 
phone. Even opening the browser or Market says no data connection.

Original comment by cryspets...@gmail.com on 16 Sep 2010 at 4:12

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Happening to me, too, with an EVO and 2.0.5-pre9. It seems to be happening more 
frequently than it did a month ago--perhaps every 15 or 20 minutes now. I have 
to stop tethering and then start again. I have full bars. I see no difference 
when I am charging or on battery.

Original comment by eddie.tu...@gmail.com on 16 Sep 2010 at 6:53

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Try changing the frequency within the settings of the app. I had the issue 
until I switched to option 1. 

Try it out.

Original comment by david.e....@gmail.com on 16 Sep 2010 at 7:04

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Using Pre9 for Evo 4g I had to crank up to channel 12 to get a consistent 
connection.  Thanks for the heads up David.

Original comment by aeolw...@gmail.com on 21 Sep 2010 at 9:42

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I forgot to respond--yes, thanks for the advice, David! Channel 1 works great 
for me. I had changed channels several times before but guess I hadn't hit the 
right one yet. Problem solved.

Original comment by eddie.tu...@gmail.com on 21 Sep 2010 at 9:45

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Glad it worked! 

Original comment by david.e....@gmail.com on 22 Sep 2010 at 12:13

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When I switched to channel 1, my problem went away! It used to disconnect every 
5-10-20 minutes before, and now rock solid! Interestingly, channel 12 didn't 
help but 1 did the trick.

Original comment by archon810 on 5 Oct 2010 at 3:10

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same here, ad-hoc not even visible on other channels. Switched on channel 1 and 
it's there and does not drop!

Original comment by Mac...@gmail.com on 2 Dec 2010 at 8:53

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android 2.2 rooted on droid 2. same results with barnacle and wireless tether 
apps.

i'm using channel 1 (which doesn't clash with other networks according to 
wifianalyzer). tried 8 and 12, but they didn't make a difference.

my mobile cell network signal strength is 70db according to the phone's 
settings.

i can view youtube videos perfectly directly from my phone. it's fast and works 
great.

pinging my gateway consistently has pings near 1ms - rock solid all the time. 
so the wifi seems solid.

Pinging google.com from my laptop through the phone gets around 200ms. The 
problem starts when i try to watch a 240p video or load a couple of webpages at 
the same time. The ping times go sky high and then turn to "request timed out". 
stopping the youtube streaming brings pings back down to 200ms. the gateway 
pings remain solid 1 or 2ms throughout.

i tried enabling and disabling encryption, but the issue still persists.

i'm out of ideas... unfortunately the channel fixing just doesn't fix it for me 
like it did for some of you.

Original comment by lclem...@gmail.com on 2 Mar 2011 at 10:47

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oh yeah, i forgot to mention - PDA net has the exact same issue - timeouts when 
i try to stream a low res video or even slightly stress the network...

Original comment by lclem...@gmail.com on 2 Mar 2011 at 10:50

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[deleted comment]

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Evo 4G w/2.3.3 w/ Fresh Evo 4.2 and 3.1 beta 6. Quickly drops/reconnects at 
random, despite using different channels. Clamping on as explained below:

Originally 2.2 w/ OMJ v4.6 Deodexed and 2.0.8 pre1. Worked great until 10/19. 
Starting then, I could only go to Google sites. OMJ would FC immediately with 
any other Android-wifi-tether APK, so I switched to Fresh 4.2, installed 3.1 
Beta 6 and used clamping. The Google-site issue stopped, but the intermittent 
disconnect/reconnect started. 

I'll owe ya one if you can help. I don't have Internet access without 
tethering. So this is critical for me.
thanks! 

Original comment by zacharyl...@gmail.com on 22 Oct 2011 at 4:39