- Plesk for Windows
- Website is inaccessible with the following error in the browser:
CONFIG_TEXT: 503 Service Unavailable
- Application pool of a website is stopped.
- Application pool cannot be started - it stops after several minutes.
- The following "Audit Failure" message can be found in Event Viewer > Windows Logs > Security:
CONFIG_TEXT: Account For Which Logon Failed:
Security ID: NULL SID
Account Name: IWPD_17(example_user)
Failure Reason: Unknown user name or bad password.
- The application pool serving the domain crashes each time you try to access the domain after that site shows
503 Service Unavailable. Errors in Event Viewer:
CONFIG_TEXT: Application pool example.com(domain)(4.0)(pool) has been disabled. Windows Process Activation Service (WAS) encountered a failure when it started a worker process to serve the application pool.
The identity of application pool example.com(domain)(4.0)(pool) is invalid. The user name or password that is specified for the identity may be incorrect, or the user may not have batch logon rights. If the identity is not corrected, the application pool will be disabled when the application pool receives its first request. If batch logon rights are causing the problem, the identity in the IIS configuration store must be changed after rights have been granted before Windows Process Activation Service (WAS) can retry the logon. If the identity remains invalid after the first request for the application pool is processed, the application pool will be disabled. The data field contains the error number.
- Connect to the server via RDP;
- Go to Control Panel > Administrative Tools > Computer Management > Local Users and Gropus > Users and find a user from the error in the list.
- Click the right button on the username and choose Set Password..., then click Proceed and set up a new password.
- Now go to IIS > hostname > Application Pools.
- Find Application pool of a website, select it and click on Advanced Setting... button:
- Find an Identity property, click on ... button:
- In appeared window click Set and enter the same username and password specified in step 3. Close all windows by clicking OK;
- Start Application Pool with Start button.