Hi,
the WHS Console runs in a Remote Desktop session on your server, so reinstalling the connector software would not change this problem usually.
Please use Remote Desktop on one of your client PCs to login to your server with the user account Administrator and the console password.
Check, if you can run the console here.
If this shows the same behavior, try to uninstall the latest HP update via Control Panel/Add or Remove Programs on the server. In case this fails, contact HP support.
Good luck
Olaf