I have a system that cannot connect to network any more. It is unable to obtain an IP address nor am I able to get it to connect to the domain. If I assign it an IP address, the internet connection is good, and I can connect through remote desktop to the domain controller (though I do have to use the external address). If, by chance, I assign it a duplicate address I get the IP conflict warning. When I try to attach through System Properties in Control Panel, I get to the last step where I am then told it cannot locate a domain controller.
I have tried changing system name, using a different network card, creating a computer in active directory (which when attempting to connect I do get notice that the computer name is already resident on the server).
Seems like everything is "correct", just the connection cannot be made. Anyone know of a workaround or maybe a way to reset the profile on the server to allow this connection?