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Windows 7 client lost SBS 2003 domain

Roger Cooper
Roger Cooper asked
Last Modified: 2014-05-21
I have a Windows 7 desktop client on an SBS 2003 network. It was working well until I did a dumb thing. We were having a physical restructure so I temporarily put a wireless switch in place for the staff in that area (they are all on laptops) until the network wiring is back in place. It's just a cheap TP Link unit. Here's the stupid part. I plugged the switch into my PC to set it up. Physically I plugged the internet port on the switch into our network, and plugged my PC into one of the ports. I was in a hurry so I ran the software that shipped with the switch rather than use a web interface. The switch setup was fine and is now working.
Now my PC takes a very long time to logon (20 minutes). It cannot load my user profile. I can only periodically connect to network drives. Outlook doesn't reliably connect to exchange. I figured I'd lost the trust of the domain so I disjoined my pc, renamed it and rejoined it to the domain and still the problem persists. I can get to files if I setup a fixed IP but outlook doesn't like the fixed IP so that's not a solution. I've tried flushing the DNS cache, reset TCP/IP and Winsock but it hasn't worked.

I'd appreciate help with this please. A little embarrassing that the company IT guy can't fix his own PC!
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