How can I avoid the SNMP error "Authorization Error (SNMP error # 16)"?

The error message: Authorization Error (SNMP error # 16) with the sensor status being down. How can I resolve this?

Please see Knowledge Base : https://kb.paessler.com/en/topic/4353-snmp-authorization-error-snmp-error-16.

SNMP error # 16 (SNMP_ERRORSTATUS_AUTHORIZATIONERROR) means that an authorization error occurred. Either the name, password, authentication type or Data Encryption Key (DES) defined do not match the device's settings. For troubleshooting purposes, please scan against the device using our SNMP Tester.

Disclaimer:
The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.