[ubuntu] oops, took down my network (dhcp conflict?)

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http://ubuntuforums.org – Well I feel silly. I tried to set up Ubuntu Server 12.04 to run some simple web-based intranet stuff on the widnows network here at work. All I did was install Ubuntu, gave the machine a static IP, and plug it in. It seemd to be working reasonably well when I left last night. When I came in this morning, the network had stopped working correctly. My coworkers couldn't reach our exchange server and people couldn't log in with active directory. I unplugged the ubuntu box, and rebooted our domain controller. Everything went back to normal. My guess is that the ubuntu box was trying to act as (Hardware)