Hi, On our network, I cannot access a shared folder on my friends machine but he can access a shared folder mine. I do not even get as far as a challenge for credentials. We are both using windows 7 and are in the same workgroup. We are also on the same subnet. In addition. I can ping his machine. When I try to connect to \\hismachinename all windows tells me is Error code: 0x80004005. I can nbtstat ok into his machine. Problem also happens when my firewall is turned off. I have ensured I have windows 7 updates. I run security essentials and a registry cleaner to ensure my laptop is clean. Problem happens if I use a wireless network or ethernet. In addition, I can't connet to other machines on the network. It is as if the router is saying, don't let him because nothing on my machine seems any different to my friends. Any ideas?