[ubuntu] Ubuntu server cannot find dhcp server

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http://ubuntuforums.org – Hi. My computer running ubuntu server cannot find my network's dhcp server at At startup it will say Waiting for network configuration... and then it will do Waiting 60 more seconds for network configuration and then the system will simply boot with network. If I manually try to assign an ip address, the system will boot with networking and it will then connect to the internet, but I cannot use ssh or samba on the local network. (Hardware)