Problem: Removed the PreconfiguredUser login module from the "admin" security configuration. Now, logins to Sybase Control Center fail.
Solution: Verify server-side configuration by trying to connect to Unwired Server from Sybase Unwired WorkSpace (requires creating Unwired Server Connection Profile with proper username and password among other things). If that works but the Sybase Control Center login still fails, check for error messages ins inagent.log can offer further clues on the