Plesk Control panel shows the error: Service Unavailable - HTTP Error 503: application pool identity is invalid

Refers to:

  • Plesk 11.0 for Windows
  • Plesk 11.5 for Windows
  • Plesk 12.0 for Windows
  • Plesk 12.5 for Windows

Created:

2016-11-16 13:23:37 UTC

Modified:

2016-12-21 20:36:57 UTC

0

Was this article helpful?


Have more questions?

Submit a request

Plesk Control panel shows the error: Service Unavailable - HTTP Error 503: application pool identity is invalid

Symptoms

1) Plesk Control Panel shows the error: Service Unavailable - HTTP Error 503.

2) In event viewer, system logs show:

    Application pool PleskControlPanel has been disabled. Windows Process Activation Service (WAS) did not create a worker process to serve the application pool because the application pool identity is invalid.

Cause

Password for psaadm user in IIS->Application pools->PleskControlPanel pool does not correspond actual password for psaadm user in Windows users.

Resolution

Launch Plesk Reconfigurator->Repair Plesk Installation->Plesk Services .

Have more questions? Submit a request
Please sign in to leave a comment.