Having a very strange problem on a Windows 2003 Server. On the my Public(WAN) NIC, For reasons I cannot explain, after 24 hours, all Ports are closed. They are normaly only filtered for http & ftp, with a soft-firewall. I'm not sure what is causing this, but after 24 hours the server becomes in-accessable from the WAN. After I disable the NIC and re-Enable it, everything goes back to normal. I'm thinking that the NIC could be faulty, but it is relativly new (On Board NIC /Dell Server). I'm gonna try replacing it with a PCI NIC later today, but was wondering if anyone had this happen to them before.