Network not working in CentOS after upgrade. How to fix?

Question

linux

Hello. It was CentOS 6.5 (AsteriskNOW image) on Hyper-V (Windows Server 2008R2), everything was fine. On Friday, I decided to do a yum update, CentOS was updated to version 6.6, in addition, about 200 different packages were updated. After a reboot, the network stopped working. The eth0 adapter is in the RUNNING state, but there are no pings at all. I tried to reinstall the adapter using CentOS and removed / added the adapter in Hyper-V, to no avail. On a completely different server, which is located in Germany, I do everything in parallel. There are no such problems, the update went smoothly. The most interesting thing is that I tried to reinstall the same image on Hyper-V, after updating and rebooting the network just stops working. Help me please. Where to dig?

Answer 1

I think you can try disabling SELinux, also service iptables stop to disable the firewall. How do you configure the network? I recommend system-config-network-tui. See also HWADDR binding to an interface.