Hey, I'm using a Toshiba Satellite C500D with an Atheros ar9285 wireless network adapter on Windows 7 OS 32bit. I have a problem when trying to connect to my home network. Occasionally it will connect with internet access, but the connection keeps disconnecting,sometimes after an hour, sometimes after only seconds. It's very moody, at other times it will connect to the network but will not have internet access. When I run windows diagnostics it will come up with different solutions each time - either being "Verify the network security key" or "Restart router or modem" (which proves not to help), and at other times it will say there is a problem with the wireless network adapter but cannot fix it. I am able to connect to other networks with no problem at all. When using the Atheros "connectivity doctor" it tells me the problem is that it fails to obtain an IP address, but the solutions it provides (restart windows, restart router) have no effect. The driver is up to date, I have tried many different driver version and I have also done a system restore, disabled my anti-virus software and firewalls, all with no success. The signal for the router is around 3 bars.. On another laptop using a Realtek wireless adapter, the signal is full and able to connect with no problems at all. I am unsure what to do and am thinking the only solution would be to buy a new wireless adapter. Any help would be much appreciated!!