Hi there,
I'm using the 4s since last friday in Germany with o2 as the UMTS/Edge network provider.
Before using the 4s I was using the 4 for 12 months.
When moving from an area with no network connection at all or a low signal strength (1 or 2 Edge-bars), e.g. when I'm in a tunnel, and the signal strength comes back when I leave the tunnel normallly my iPhone 4 instantly reconnects to the network first with Edge (GSM) and then switches to UMTS after a few seconds - all is fine then.
My new iPhone 4s also reconnects to Edge and then switches to UMTS - BUT then it loses the complete mobile data connection for several seconds - while the signal strength is at 5 bars. Result: No GRPS, no Edge, no UMTS.
After the pause it tries to reconnect to 3G, stays in the 3G network for about 2 seconds and then often (not alsways) loses the mobile data connection again. When trying to reconnect for the 3rd time the connection stays stable.
This strange behaviour occured more than once and is very annoying for me beause I often use the complete mobile connection while traveling now. My iPhone 4 newer shows/showed these bugs in the past - also when using iOS5 beta and final. So it's only an issue with the 4s.
Anyone out there experiencing similar issues?
Thanks!
Greetings
Steve