Hi All
Have been getting this error more and more till now its consistent. New devices will not register with the following message

"Registration Manager - Network error connecting to server: The underlying connection was closed: Could not establish trust relationship for the SSL/TSL secure channel."

When I look at the certificate on the device it says "The certificate has expired or not yet valid" with a date of 25/5/2019
So why is it not being validated? Was working fine after last image rebuild with new deployment agent/registration key etc.

Found this thread below on the old ZCM10 forum. Tried the url but it's gone.
Jared - any chance you can repost? I don't think it will help but I'm grasping at threads at the moment. Gone through TID 7002409. Is there a maximum device count? Off course this has happened just as I've gone into production!!!



I extracted the package and see that the IP and hostname on the cert
> are wrong. I know why they are wrong (from previous installation) but
> I don't know how to fix it.

That's easy. You can re-create the deployment package. Here's the docs
for this.

Jared Jennings - Data Technique, Inc.