Home Network :: Red X Over Network Icon / Have Internet Access?

I have been using a laptop to stream videos through my xbox for over 2years until recently. I setup a wireless network in the house to do this. All was fine until 3 days ago.I use a Dell Inspiron 1545 with Windows 7. I have a Dell Wireless 1397 Minicard, a cisco router (model #2425). Since my laptop was infected by Malware, my network has not worked since. I downloaded Malwarebytes Anti Malware to get rid of it and it appeared to work. I got internet access back. However, I still cannot connect to my network (visible in the Available Network list as normal) or stream any media.Windows Media Centre also has stopped opening and gives me the small box saying 'windows is checking for a solution', then closes with nothing. I can however open WMC if I right click and 'run as administrator'?! I have disabled all other network adaptors, only the Dell minicad is enabled and also tried disabling and enabling this main one with no effect. All problems point to the fact that my laptop can no longer connect to the home network but I cant figure out why?!Another (possibly unrelated) problem is occuring at boot up where I get an error message saying 'Bluetooth Software License not found. [2]' - Again this never happened before the Malware infection.