Well, In my case, I can't ping the server machine from the dos prompt, whereas I can ping others on the same router switch ports.
I can also ping everyone connected to the router from the Dos prompt on the server machine.
I've tried to access the firewall, but an error msg came up saying that another service maybe trying to access the Ipnat.sys file.
The server's running server 2003 from good ol' microsoft. - How can I access the security settings?
I can't do it via network connection settings.
i get the following message: