[ubuntu] network problem 10.04 ==> 12.04

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http://ubuntuforums.org – I did the upgrade and it went sort of well http://ubuntuforums.org/showthread.php?t=2068666. I did some searching on the problem but apparently can't find the right terms. I'm sure I'm not the only one having this problem. This is the error message I get at boot: waiting for network configuration ... waiting up to 60 more seconds for network configuration booting system without full network configuration When I tried the live CD everything worked OK. I'm using a Dell 1420n and ran Ubuntu on this box since 7.04 with very few problems. Here is my network card info from lspci: (Hardware)