Symptom
When logging on to NWBC, you might receive a basic authentication logon window with no client field, and when logging on you end up in the wrong client.
Solution
Make sure that on the Error Pages tab page in transaction SICF under Logon Errors the option for Explicit Response Time is not selected. Use the System Logon instead.
For more information, see 7.1 NWBC and Authentication and System Logon.