Cant connect to mobile network after i disconnect from WiFi

[JaysDroid2]

I am having the exact same problem. I have 4G or nothing, I have tried switching to CDMA only, pulling the battery, all that stuff....no luck. Any advice?

yes, go to your store and exchange it, you got 14 days worry free, use it, im on phone 4, 2 with connectivity problems, one with rebooting, call tech support and have them notate your account, they are otherwise......useless. All you can do is let them know there IS a problem and your not the only one with the problem, for a top tier phone there is some sort of expectation of reliability, otherwise just take it back until you get one your satisfied with, ive got high hopes for my current phone, dont take no for an answer, be persistent and good luck

[syndicate0017]

I hate to be "that guy" who tells you to root your phone, but....flashing the leaked 4.0.3 radios makes a HUGE difference in this problem. I have instantaneous handoff between mobile data and wifi.

[JaysDroid2]

Well yea, there is always THAT, which i have every single intention of also doing, but i really would like to make sure i have as few problems as possible before i root, i really dont want to re lock and un root eveery time i have to exchange my phone, heck, im kinda miffed everytime i exchange i loose another screen protector