I have been using my Lumia 710 without issues for two months till Yesterday I updated it to the latest version via Zune (OS Version 7.10.8858.136). I have lost the ability to connect to the internet thru the cellular connection. Everything work OK with WIFI but 3g is no good. I have the "3G" Icon active all of the time and full bars in most places.
Please help fixing this ASAP as I use this phone for work and mobile data connection is a must.
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You can also try to manually configure the APN settings for your phone
1) Go to Settings
2) Cellular / Mobile Network
3) Edit APN
4) Enter all APN settings (you can get it from your service provider).