I am having a very bizarre issue with only one computer on my network. We are running windows 2003 server. My computer is setup with gigabit ethernet to a trendnet 16 port gigabit smartswitch. Only one of my computers is having this problem. What is happening is almost clockwork around 6:59 I lose my network connection. I am getting an ip address but can't get on the internet or the server. If I wait about 30 minutes then my connection is back. I have no clue what or why this is happening. My computer is pointing to the server for dns.