SNMPV3 privacy passphrase "incorrect" on only ONE UPS

[CrypticIT]

I have a bunch of Smart-UPS SRT 5000 units.  I monitor them with SNMP V3.  All of them have the same configuration.  ONE of them will not accept the Privacy Passphrase.  It's fine with the Auth Passphrase, and it's the same Privacy Passphrase as on all of the others.  

Just this one UPS will not accept it and returns the message:  Please complete or correct the fields highlighted in bold red below.  Privacy Passphrase (The passphrase we use) has been entered incorrectly. 

I've disabled, rebooted, and reenabled it.  I've set it to something else that works, then tried to set it back to what we use.  It seems I could change it to something else and then have to go change every other machine in the company, but I'm not doing that.  

 

[CrypticIT · Accepted solution]

I think I found my answer, and I'm not all that happy about it.  The UPS that will not accept the passphrase is a slightly newer firmware and appears to require a couple more characters in the passphrase.  So, I indeed must revisit every single bit of equipment in the organization to change their passphrase.