Houdini won´t recognise my license although according to the License Administrator it´s properly installed.
Wehn I open it, it starts the license administrator, even if I choose free license, after a restart I get back to the beginning.

License Manager shows 3 apprentice HD licenses, as well as 2 normal apprentice licenses:

Houdini-Master-NonCommercial 11.0 Platform: Generic Available 0/1 IP Mask +.+.+.+ Expiry Date 01-jan-2037

Render-NonCommercial 11.0 Platform: Generic Available 0/1 IP Mask +.+.+.+ Expiry Date 01-jan-2037

Houdini-apprentice-HD 11.0 Platform: Generic Available 0/1 IP Mask +.+.+.+ Expiry Date 01-jan-2037

Server Information shows:

Licensing mode: local licensing
Connected to: <my computer name>.fritz.box (wich is the router)
License server host: <my computer name>.fritz.box (wich is the router)
License server code (I skip that, it´s not for public eyes)
license server version: 11.0.446

The license server is running
the license server is allowed to serve licenses
License Administrator can read and modify local licenses

System is a MacPro, running OS 10.6.3

thank you for your support.