1. Check in the CWP customer area to see if the IP address is correctly assigned to the license.
2. Run the command: /scripts/update_cwp (Yes, this is the update command, but do it just to be safe, since version 1224 was released today.)
3. If that doesn't work, try /scripts/reload_cwp. This will restart CWP!
Then check if that worked. I had this problem with an earlier version.