You may need to resynch the hardware token with your Duo account. To resynch the hardware token with your Duo Account, please re-enroll it with your Duo Account. For detailed instructions, please visit the knowledge article on how to resync your Duo hardware token. 

If you have lost, or the battery has stopped working on the security hardware token, you can replace the hardware token. For more information, please visit the Rutgers Software Portal page to obtain a Duo hardware token replacement.