Comment 103 for bug 1470250

Upgrading the kernel does not help this issue. Moreover, the upgrade gives new issues. For the third time now, the network of one of the Ubuntu VMs suddenly goes down. As so it seems. There is nothing in /var/log/syslog that indicates that the VM has a problem. It is continuing its work. But from the outside the VM is unreachable. This was a problem we never had before the upgrade. There were no significant other changes. I am downgrading my machines back to Vivid.