Registration Security Error

[Cleo Jamison]

Hello I'm running CUCM 11.0 getting a Registration Security Error when trying to add a phone.

I've tried some of these suggests mentioned in community but didn't work.

Anyone have some updated suggestions.

Thanks,

[Jonathan Schulenberg]

Duplicate of https://supportforums.cisco.com/t5/ip-telephony/cucm-11-certificates-expired/td-p/3362075