Unable to log in to ArcGIS Server Administrator

Description

Attempts to log in to the ArcGIS Server Administrator Directory fail, with the following error message returned:

Error:
Invalid credentials.

Cause

• When logging in with an account other than an administrator account, a token is required. The error message is returned when logging in without a token or with an expired token.
• An incorrect username or password is entered when logging in to ArcGIS Server.
• The browser cache is not cleared.

Solution or Workaround

Generate a token for the ArcGIS Server Administrator URL for non-administrator accounts

Refer to Portal for ArcGIS: Access the Administrator Directory on a federated server for instructions. Token expiration durations can be set to a minimum of one hour or a maximum of two weeks. After a token expires, a new token must be generated for the login credentials.

Enter the correct username and password when logging in to ArcGIS Server Administrator

Reset the login credentials for an account with a token generated or the primary site administrator. Refer to ArcGIS Server: Reset a forgotten password for instructions.

Clear the browser cache

Clear the web browser cache. Refer to the links provided below for instructions and more information.

• Google Account Help: Clear cache & cookies
• Microsoft Edge Support: View and delete browser history in Microsoft Edge
• Mozilla Support: How to clear the Firefox cache