Hello, I am hoping someone can help with my problem.   I own a Dell XPS 8900 desktop computer.  The service tag is .    This is a computer that never leaves my desk.  Its is wired to a modem (Motorola Arris Surboard Modem 200 Series) via ethernet cable.    Basically wireless connectivity is never needed.   For some reason I keep losing my internet connection.   When I try to troubleshoot I sometimes get "The system is unable to detect wireless networks".  What I dont understand is why would I need a wireless network?   On other occasions when I troubleshoot I get "troubleshooting couldn't identify the problem".   I'd just like to figure the best way to resolve this problem - the problem being that I keep on losing my internet connection.   To get it back I have to shut down the system and restart.  But this business of suddenly and inexplicably losing my internet connection while I am using the computter is getting very irritating.   I appreciate any help.