Cant Open windchill in client

Hi,

I chaged my domain name and reinstall the Windchill PDME 10.2. The Installation and configuration was successfull but when I try to open my windchill in client I get an error. The page cant be displayed.

The remote device or resource won't accept the connection.

The device or resource (mycompany.mydomain) is not set up to accept connections on port "hosts2-ns".

Anyone knows how to fix this problem?

Thanks!