Hello everyone. I just joined the forums to post my problem because I feel like I'm going to throw out my PC right now. I am running Windows 7 Ultimate build 7600. I recently changed my motherboard and yesterday I got it back from my local IT specialist. When I started it everything went fine but when I tried connecting to my wireless router (Asus WL-520GC with PPPoE) using a USB wireless card (Asus WL-167G) I got the Limited Access problem. I tried everything I could find on the internet from disabling IPv6 to upgrading my router firmare and calling my IT specialis. Everything with no result. The strange fact is that my brother's PC is using also Windows 7 with same USB wireless card and it works like a charm. My MacBook and Asus Notebook(winxp Sp3) run perfect connected to the wireless router, so it must be something with my PC. Please Help! Cheerz!