After fresh install of a VCSA 7.0 U1 FQDN Problems during Configuration

Hi,

I have a installed a VCSA 7.0 U1, it works fine. During the vCenter Server configuration of the network settings I have a probleme with the FQDN for the system name. When I try the IP Address or the FQDN I get the answer  saving of the IP configuration not possible. When I connect over SSH to the server I can check with nslookup the DNS configuration without problem, forward and backword. Now I hang in the configuration with no way out.

How can help me to finish my configuration to work with the VCSA.

Thanks for help

Bernd