MAS - The authentication token is invalid: ExpiredSignatureError('Signature has expired')

 When you try to log into Maximo Application Suite, you receive a message:

Login failed

Invalid username or password. Try again or contact an administrator reset.

In coreapi log:

AIUCO1001E: The authentication token is invalid: ExpiredSignatureError('Signature has expired')

Resolving The Problem

Export a new license key file in IBM Rational license Key Center and replace it in Maximo Application Suite:

Reference Link : https://www.ibm.com/support/pages/node/7130913