On 15/08/12 16:18, James B. Byrne wrote: > On Wed, August 15, 2012 09:15, Reindl Harald wrote: >> did you read the output you posted? >> http://lmgtfy.com/?q=unable+to+load+firmware+patch+rtl_nic%2Frtl8168d-1.fw > r8169 0000:01:00.0: eth1: invalid firwmare >> r8169 0000:01:00.0: eth1: unable to load firmware patch >> rtl_nic/rtl8168d-1.fw (-22) > > I cannot seem to find a fix for this even given the references > provided. However, I have discovered that eth1 has problems on the > second host as well, it just does not generate the same messages: > <snip> > > So, my questions are: What is the problem and how do I fix it for both > hosts? > Have you tried the updated driver I suggested? Set up elrepo.org repository and then do: yum install kmod-r8168 reboot and test. If it doesn't work you can uninstall it and you've lost nothing but 10 minutes of your time.