Ensure that certificates on either side of the attempted connection did not expire.

Ensure that the Trust Anchor is in the Trust Store on all cluster nodes.

Ensure that all nodes in a cluster are TLS enabled for every interface.

When the IP address of a server changes, new certificates may be required if subject alt name is used.

If a restoration, using a backup file containing expired certificates or outdated TLS configuration settings was used, then fix the TLS configuration.

Some TLS changes require an Avaya Aura® MS restart for the changes to take effect.

Consult Avaya Support about the media security settings meeting the requirements.