The test authentication requests (Synthetic Transactions) initiated from this server has failed to obtain a token after 5 ...

The test authentication requests (Synthetic Transactions) initiated from this server has failed to obtain a token after 5 retries. This may be caused due to transient network issues, AD DS Domain Controller availability or a mis-configured AD FS server. As a result, authentication requests processed by the federation service may fail. Please note that the agent uses the Local Computer Account context to obtain a token from the Federation Service.