We had a power outage the blew up my wireless router so I got a new one. Everything works fine (laptops, printer) except the m cell. It will not connect to the internet. I have solid power and gps lights, blinking ethernet and computer lights. 5 bars blinks randomly. I have tried everything. multiple cables including using the one for the printer that I know works. I have unregistered and reregistered the m cell with att.
Agree with nsayer, but let me add this: I had a working MCell for over a year. A month or so ago I had a power outage at my location. After the power was restored, everything worked fine except for the MCell. In my case, I had solid power, GPS, and ethernet lights, but the 3g light (5bars) would blink and nothing I tried, including deregistering and reregistering the MCell helped. Finally I returned the MCell to the AT&T store and got a warranty replacement, brought it home, set it up, registered it and it came up fine and has been working OK since then (well, except for the delay in call setup with iPhone issue...but that's another story altogether ). So if all else fails, don't overlook the possibility that your MCell got fried in the power outage and may need to be replaced.