All servers have been updated to 188.8.131.52.
I did not choose to update permissions in master database on at least one of the servers.
My server setup consists of master server and 3 OpenVZ Servers. All have 184.108.40.206 - same goes for all containers on the 2 OpenVZ Servers working fine (got 14 containers).
The fault only happens to the newly installed OpenVZ Server. Just tried on the 2 other OpenVZ Servers and can create containers / ip's and so on.