HWNSS0004E `The web server is unavailable and cannot be used for authentication. The Device server can be used for some authentication, but IBM Spectrum Control functions will be limited. To proceed, enter either the common user name that was used to install IBM Spectrum Control or the tpcFileRegistryUser user name and password.`

Explanation

The web server provides authentication and single sign-on. If the web server is unavailable, IBM Spectrum Control can only authenticate user names that do not use single sign-on.

Action

Restart the web server and log in to IBM Spectrum Control again.