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3G internet not working

I've had the iPhone 3GS for a year and not experienced any problems with it. But in the last few days, I've been unable to connect to the internet via 3G. It works perfectly fine via WiFi and I've tried the SIM in a different handset and it works fine, so that's not the problem.


Strangely, it does however work in certain instances, for example I can receive WhatsApp messages and some push notifications, but it will not load internet pages, Facebook, Twitter etc. I've also noticed that the battery is running down quicker than usual


I've tried resetting the network settings, along with resetting the phone on several occasions, neither of which seems to have helped.

iPhone 3GS (8GB), iOS 5.1

Posted on Mar 22, 2012 5:51 AM

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3 replies

Mar 22, 2012 7:14 AM in response to diesel vdub

Hi, thanks for replying!


I've tried with both 3G turned on and off in the settings and neither seem to work, and mobile data is enabled.


I tried the SIM in a different handset and it worked okay, so I'm assuming that means there are no network or account issues?


Very frustrating as you can imagine! I know little about these things but it seems that anything using 'a lot' of internet doesn't work (apologies for the terminology!) For example, I can send text via Whats App but not an image. I can access a web related game but not Facebook, Twitter, any web page etc? Is it possible there is something running in the background, which would also explain the battery usage?

Mar 23, 2012 2:35 AM in response to JoanneL26

I think I cracked it!


A while ago, probably quite stupidly, I agreed to take part in a mobile usage study with a survey website that I'm registered with. It involved installing an app, but after a few days I deleted it because I noticed a significant different in battery usage.


However, it seems it created 'profiles' that I hadn't removed within settings, which I think affects the networking settings. I've removed those and since then, my 3G has been working perfectly!


Just thought I'd post this in case it helps anyone else in the future!

3G internet not working

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