I have a dell laptop(windows 7) and I cant keep my wireless from disconnecting every 2 minutes. its really annoying and cant hardly do anything!. it didn't do it when i had ATT internet but we recently switched back to our cable companies internet and i started having this problem(my mom doesn't have this problem with hers). when it does it i right click and click troubleshoot and it always comes up with these reasons:
"Wireless Network Connection" doesn't have a valid IP configuration
The Default gateway is not available
when i do the manual diagnostic tool it passes all the test except the ping test and says Response: Default Gateway No Response: DHCP Server
so any idea what the problem is? could it be that my computer or wireless adapter isn't compatible with my cable modem? we have a wireless one. I don't ever recall having this problem when we had ATT. is it also possible my wireless adapter/card is bad?