Patrick Lists wrote: > On 09/23/2011 12:54 PM, Volker Poplawski wrote: >> Hi all, >> >> I'm facing a serious problem with the e100e kernel module for Intel >> 82574L gigabit nics on Centos 6. > > I have also had problems with an Intel Gbit nic in a Dell Optiplex 760 > using the e1000 module. If it would come up it would come up at 100Mbit > speed. Only unplugging the LAN cable en reinserting it in the switch > would sometimes result in the proper 1Gb speed. After replacing the 3Com > Gbit switch with a DLink Gbit switch things started to work ok. > > As suggested, you could try out the e1000 kernel module form elrepo (if > it works, good for you) but you may want to look into the switch too. Hmmm, we had a problem like that, but in our case, it was the NIC. If someone's already asked this - I didn't read the list over the weekend - ignore the request, but if not, while it's not working, what's the o/p of ethtool eth<whatever> mark