Can't access Controller-UI

Hi,

we moved our AppDynamics-Controller to a new server, with a new server-name and also a new ip-address.

We would like to keep our AD-data, so we customized (ip+port) the startscript and the GlassFish - domain.xml.

After we start AppDynamics, the startup.log shows many successful messages but although the system seems to be running (telnet to address and port is fine), we can not acces the Controller-UI via http://<url>:<port>/controller.

Any answer will be appreciated.

Thanks in advance!
Ramiz