Jochen,

Have you check the basic ie can you access the workspace ?

If yes then I will recommend that you use the "Change Server" menu in the K2 Object browser (there is an down arrow on the right  hand side) and acording to your configuration change the parameters

and use the test functionality.

chalama

Jochen,

Check the EnvironmentSettings.config file located on your development box at:

C:Program FilesK2 blackpearlBin

Make sure the connection string is pointing to your K2 server.

The other file to check is ConfigurationManager.config, in the same directory.  It stores a few other connection strings (like the User Manager server - also should be your K2 server).

HTH...

Thank you. It was a problem with the connection string. And in the string table the URL to the web service was not configured correctly. Now all systems are working.
Cheers,
Jochen