Cannot connect to Serengeti Server

Hi,

the deployment of the Serengeti vApp and the installation of the Web Extension were successful, however we cannot connect to the Serengeti Server from within the BigData Extension.

We get an error telling us that the Server in not reachable when selecting the serengeti management server from the BigData Plugin. But no further information is told.

Any Idea?

Cheers

Frieder