503 Error in Web Page

Author: Ian Britz

Symptom

When trying to access the Kepion Web Server, you receive the error: HTTP Error 503. The service is unavailable.

Resolutions

Password Change

A common cause for this error is that the password for the Kepion Service Identity (SI) has been changed. This is especially common if the Kepion SI is also a user account, rather than a dedicated service account.

To resolve this:

1. From the Kepion Web Server machine, search for inetmgry from the Windows OS to open Internet Information Services (IIS) Manager.

2. Select Application Pools, right-click Kepion Planning, and select Advanced Settings...

3. Find the Identity option under Process Model and click on the "..." button.

4. Ensure you have Custom account selected then click Set... 

5. Enter your Kepion SI credentials. Should the username or password be wrong, you will be prompted to correct them.

Tip: The credential should take the form of <domain>\<username>. 

6. Click OK on all the previously opened dialog windows.

The Kepion SI credential is now updated. Give your new settings a test by going to a browser and checking if Kepion is back online.

Security Policy Permissions

Another potential cause of the 503 error is that the Kepion SI is attempting to access the Web Server, but it doesn't have permission to Log on as a batch job in your Local Security Policy app.

1. Open Local Security Policy on your Windows OS. 

2. Go to Local Policies >User Rights Assignment

3. Right-click Log on as a batch job and select Properties.

4. Select Add User or Group...

Tip: You can either add your Kepion SI credentials to the list above or or add them to one of the groups in the list. 

5. Select Check Names to find your Kepion SI credentials.

6. Select your Kepion SI and click OK.