Help Data Connection Problem

[ken481]

Hi

I am having problem with my internet (data) connection on my phone.

What's happening is that i start using the internet connection with no problems then at one point i lose data connection - all other serviced work well - sms / calls.

In order to get my data connection back i either have to restart phone or else go to flight mode and off flight mode again.

Is anyone experiencing a similar problem?

Ken

 

[Mobileum]

I had the same problem. Removed "Green Power battery saver". That fixed it.

 

[ken481]

Hi thanks for your reply - problem is that i do not have that app installed on my phone. So still stuck

 

[2raaas]

im sorry to hijack your thread but i have a similar issue, when my s2 is tethered/using the navigation, the screeen switches off n it kills the connection, anybody knw the fix to this?i have to switch the screen back on for it to work-annoying with the navigation!

 

[ken481]

It doesnt seem much people have this problem. thats strange any expert with any ideas

 

[stevehy]

Try this: settings, wireless networks, wireless, advanced, never sleep wifi. May help based on your description.

 

[rubayets]

Ha anyone found a solution yet??

 

[ken481]

Well apparently problem is my service provider - i live in Malta - and my current service provider is changing the transmitters for 3g internet.

i asked a couple of friends around and they all seem to have the same problem even those with htc and nokia phone

ken

 

[IllBehaviour]

I am also experiencing this problem (using the Three network in London), the data stops transmitting even though the phone is showing 3G or H connection.

The only way is to toggle flight-mode or restart.

 

[androidexpat]

Nexus S has similar issues. One has to wonder if this is a Samsung issue or Android issue..

 

[catchwater]

Same issue - in Hong Kong on 3... used same network with my previous phone, HTC Desire, without this issue, so I'm assuming it's related to the phone/software.

Disabling/renabling mobile data also solves problem for me, as well as airplane mode...

 

[androidexpat]

Same issue - in Hong Kong on 3... used same network with my previous phone, HTC Desire, without this issue, so I'm assuming it's related to the phone/software.

Disabling/renabling mobile data also solves problem for me, as well as airplane mode...

Maybe it was a language barrier for some of the Koreans getting this done right

 

[domper]

I have this problem too. Turning data on and off helps for a while, but after around 10 minutes the phone may or may not have a data connection again. It's kind of random. Reboot seems to help, but I'd rather not reboot the phone once a day because of a bug.

 

[halfman21]

I have this problem too. Turning data on and off helps for a while, but after around 10 minutes the phone may or may not have a data connection again. It's kind of random. Reboot seems to help, but I'd rather not reboot the phone once a day because of a bug.

Same thing happens to me and sometimes i can't even send sms I have to restart the phone because it just sits there. Over at XDA I read mention of a possible problem with the baseband when the phone switches from tower to tower and not reconnecting properly. Someone suggested disabling fast dormancy but I havn't had any luck with that either. I do believe it is a baseband problem and hopefully sammy pushes an update to fix this.

 

[Thameswater]

had to sign up for this

Ive been having the same issue ever since I got this phone

it was originally on vodafone UK, but I switched the sim card to Virgin Mobile, not sure if thats the reason

I have to select a new network to get it to work or turn off, havent tried the flight mode thing.

really annoying, has anyone fixed this?

 

[loony]

im on new firmware (KF4...well....new for me down here ) and ive noticed some things wont work correctly, restarting the phone does ifx it. (like KIES air wont work until i do a restart)

as for the connection, i sometimes do not have a connection but its rare. Only thing i did find from talking with the ISP is to change the settings to "GSM ONLY"
i kept getting call drop out and the likes, and when the connection finds other connection types (leaving it on auto-mode) it has to disconnect to re-connect to the other mode. hence....losing the connection...calls dropping out.

i live on the outskirts of the 3g area, the WiFi works well, but if i leave it on auto mode, its swaps around and creates problems.it also helps battery life as its not continually searching for networks.

bottom line is, i get a more stable connection by taking it off auto mode and selecting the network manualy. (settings-wireless+network-networks-networkmode)
your issues may be unrelated but cant hurt to give it a try.

Try this: settings, wireless networks, wireless, advanced, never sleep wifi. May help based on your description.

*interesting....i DONT have this setting on my phone. only wifi settings/wifi direct settings/kies via wifi.....no "wireless" settings?

 

[mike_freegan]

I am on the 3 network in the UK and have put a lot of research into this.

See my thread here for the best fix so far:

[FIXED] 3 UK Network data hanging - xda-developers

Essentially, the stock 3 firmware is fine. Any other ROMs, radios and kernels cause the problem with varying severity. The problem depends on the area and network you are on. I suspect it is due to a problem with the modem and fast dormancy, although networks like 3 have this problem on a lot of handsets. It used to happen on iPhones but they fixed it somehow, and obviousl did the same to the stock SGS2 firmware.

Samsung need to pull their finger out on it as this is unusable in its current state for me as I can't rely on push notifications.

 

[right_mr]

I had this problem too. I thought it was apps, 3 factory resets later the same problem kept reappearing even when I only have a few apps installed. Data worked fine on my atrix so what solved the issue was the APN. By default the sammy has a rubbish APN.
add a new APN as follows and problem should be solved:
Name : 3
APN: three.co.uk
MMSC: http://mms.um.three.co.uk:10021/mmsc
MMS Proxy: 217:171:129:2
MMS port: 8799
MCC: 234
MNC: 20
Authentication type: PAP
APN type: Internet + mms

Using the above APN definitely sorted my woes, I now have around 150 apps installed and no data issues...

 

[ken481]

It seem quite a bit of people have this issues - mine is doing it less now - not sure but somewhere i read that with time the phone tends to do it less and less - as if the phone "learns".

I have contacted my service provider to give me the apn details to try as it was suggested by right_mr.

Will post here the results

 

[right_mr]

Or you can manually add this APN, you can obviously keep your old APN in case it doesnt work.
Go to wireless and networks\mobile networks\Access Point Names then click on menu and select new APN.
Input all the details exactly as I have provided them and then dont forget to click on menu and save the APN
Once you do that you will have each APN listed, click on the circle to the right of the newly set up APN and it will glow green in colour. The data network notification icon should disappear and reappear with 3g again.

I dont think three customer service have a clue what they are doing

 

[incsmiro]

I had this problem too. I thought it was apps, 3 factory resets later the same problem kept reappearing even when I only have a few apps installed. Data worked fine on my atrix so what solved the issue was the APN. By default the sammy has a rubbish APN.
add a new APN as follows and problem should be solved:
Name : 3
APN: three.co.uk
MMSC: http://mms.um.three.co.uk:10021/mmsc
MMS Proxy: 217:171:129:2
MMS port: 8799
MCC: 234
MNC: 20
Authentication type: PAP
APN type: Internet + mms

Using the above APN definitely sorted my woes, I now have around 150 apps installed and no data issues...

Anybody have any idea what the APN settings would be for T-Mobile? I've just started getting an issue with my S2 not connecting to data network at all, already selected 'use packet data' but when I go into about phone, status it says that data network is disconnected.

Edit - it's just re-connected again while I was typing, this was following a power off, battery removal procedure. Not something I wish to do very often with the ridiculous back cover on the sgs2!!!
If anyone can still post in case the problem re-occurs that would be great, thanks.

By the way I've been using green power, reluctant to remove at the moment as its a great battery saver.

 

[lobo76]

Anybody have any idea what the APN settings would be for T-Mobile? I've just started getting an issue with my S2 not connecting to data network at all, already selected 'use packet data' but when I go into about phone, status it says that data network is disconnected.

Edit - it's just re-connected again while I was typing, this was following a power off, battery removal procedure. Not something I wish to do very often with the ridiculous back cover on the sgs2!!!
If anyone can still post in case the problem re-occurs that would be great, thanks.

By the way I've been using green power, reluctant to remove at the moment as its a great battery saver.

Well, you need to learn to google...
Here is the result I've got.
[SETTINGS] T-Mobile APN Settings

If you get connected but somehow data is not 'moving', disable fast dormancy and try again.

 

[incsmiro]

Well, you need to learn to google...
Here is the result I've got.
[SETTINGS] T-Mobile APN Settings

If you get connected but somehow data is not 'moving', disable fast dormancy and try again.

Hi, thanks for the reply, did a google search for the UK settings but those are generic anyway, there probably the same as what's already on there. I was under the impression that the settings described earlier in the thread were different (faster) than the normal ones, but I may be way off course with this theory so apologies if that's the case.

 

[brightonboy]

I have been having exactly the same network connection problems.
My partner and I are on the same network (three) and have different phones.
Me=SGS2 Partner=Iphone4

Travelling around, my S2 struggles to toggle between H+/H/G. Iphone on same journey on same network doesn't lose connection.

Changed sim

 

[ZekeCresando]

Try configure back the router.It works for me.