I recently installed windows 7 onto my dell vostro 1520 PC. The computer now can't connect to the LAN. It say authentication failed. Under IPV4 and IPV6 connectivity is says not connected. Wirless works but I cannot get the LAN to connect. Ive tried using other ethernet cables, which still dont work. I'm not very tech savvy, but any suggestions would help.

I think this belongs to a different forum (Windows 7), but still sounds very much like what I am going through (http://social.technet.microsoft.com/Forums/en-US/itprovistanetworking/thread/5e35ec32-7cdf-4ff4-903f-a3f978731953)

Hi, After checking the issue, it seems this is a general Windows 7 related issue. As this forum focuses on Windows Vista specific issues, this inquiry would best be posted to Windows 7 forum: http://social.technet.microsoft.com/Forums/en-US/category/w7itpro The reason why we recommend posting appropriately is you will get the most qualified pool of respondents, and other partners who read the forums regularly can either share their knowledge or learn from your interaction with us. Thank you for your understanding. Regards,Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.