Every now and then I'll lose my data connection. I don't think it's the the same issue as in "Problems with 3G data" thread.
I can take my phone out of my pocket and it'll show either "3G" or "4G' on the top depending on what area I'm in and I've got good signal strength, but if I try to get online it tells me there's a network error after searching for the page for awhile. The same thing happens if I'm at home and connected to my house wireless network. It shows that I'm connected but if I try to do anything that requires data it'll eventually just time out, like there's no signal. A hard reset seems to fix the problem, but I don't like having to do that every few days.