Hello Everyone,


I am aware my guest OS is out of support but I experienced the following:


oVirt – 4.2.8 (self-hosted engine)

VM – CentOS 5.2; two VNIC’s ( driver used e1000) connected to different VLAN’s;  - no issues with network connectivity


After upgrade to oVirt 4.3.7


The same VM starts normally. Network is available for several seconds (10 – 20 pings) and then it disappears. The machine works but no ping to/from VM. When I am returning the same machine (via export domain) to oVirt 4.2.8 environment – it works as expected.


Can someone advise on this? Any help will be greatly appreciated.


Thank you.