I'm on Jaunty and have the same problem. I unplug and plug the ethernet until the link light turns on.
lspci: 00:19.0 Ethernet controller: Intel Corporation 82562V-2 10/100 Network Connection (rev 02) Subsystem: Dell Device 0238 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 2302 Region 0: Memory at fdfc0000 (32-bit, non-prefetchable) [size=128K] Region 1: Memory at fdfff000 (32-bit, non-prefetchable) [size=4K] Region 2: I/O ports at fe00 [size=32] Capabilities: <access denied> Kernel driver in use: e1000e Kernel modules: e1000e uname -a : Linux XXXXXXX 2.6.28-14-generic #47-Ubuntu SMP Sat Jul 25 00:28:35 UTC 2009 i686 GNU/Linux -- DHCP and ping failure on e1000e https://bugs.launchpad.net/bugs/382671 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs