We now have 5 Machines that started getting this today but we know 2 of them at least are on 1809. No idea yet of the issue but same symptoms you describe. We are asking them to get logs via Webex Tracer  on Monday so we can investigate and to open a...

For what its worth I was having the same Issue and the TAC engineer had me move the Auth user closer(higher in the tree) to the Searchbase. PCA LDAP does not work as well as CUCM LDAP yet.  I am sure the developers are working on improving it but unt...