Web Publising Engine Access Error

[Franklin12]

New to FM Forums. I have run into a problem where my FM Server Publishing engines turns off about once a day.

Today it went off at 8:34 AM. It gave me the following message "error was encountered communicating with the server". The Web Publishing Engine was red though IWP, XML and XSLT showed as on. The log view showed the following information: "/fmi/conf/config.wpc" 401 0. Any idea what could be the problem?

[Vaughan]

It'd be helpful if you'd give details as to the FMS and OS version and the setup you have.