Issues after updating iPhone3GS to iOS5 on TIM cellular data network (Italy)

Hi everyone
I have issues after updating iPhone3GS to iOS5 on TIM cellular data network.
After installing iOS5 I had to switch from apn ibox.tim.it to wap.tim.it
Since then the phone is unusable for any internet activity that is barely "data demanding" (e.g facebook app take literaly hours to update), everyting requires way to much time... the iPhone is not an iPhone anymore... it's worse than my blackberry with just GPRS on it.
TIM technical support suggested me to switch back on apn ibox.tim.it, but then I would not be able to use internet tethering anymore (they say because of Apple iOS5) ... to bad I need internet tethering for work.
I am seriously thinking to switch ISP or phone.
Anyone did experience same problem / found a solution?

Hi Raia.D,
Welcome to the Support Communities!
The first thing I would suggest is to restart your iPhone. Then tap the Settings app, and you should see Cellular listed on the main settings screen. You should see Airplane Mode, Wi-Fi, Bluetooth, and then Cellular.
Here are some additional troubleshooting steps to try:
iPhone: Troubleshooting a cellular data connection
http://support.apple.com/kb/ts3780
Cheers,
- Judy

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Issues after updating iPhone3GS to iOS5 on TIM cellular data network (Italy)

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