Sounds like you’ve tried everything. I would have given up and went with either cable or an USB Wi-Fi card. When reinstalling drivers, did you let windows choose the optimal driver or did you download them from the motherboard manufacturer? I would look at downloading the latest driver from the mobo manufacturer, and if that doesn’t work I’d work down the list of older versions. Maybe even going through older bios revisions. Is there any warranty left, and can you find any forum posts regarding the mobo and wifi issues?

Also, have you looked through the bios settings? I can’t suggest anything in particular to look for, but a reset of the settings wouldn’t hurt.

192.168.1.777 isn’t a valid IP-adress. Choose another.