I am experiencing a problem with databases across a DAG.
Two Mailbox Servers, MBX1 and MBX2. MBX1 has 5 databases, MBX2 has 4. I am trying to copy the 5th database to MBX2, but I get the following error:
Error: An error occurred while communicating with server 'MBX1'. Error: A secure channel could not be established. [Database: Mailbox Database 5, Server: MBX2.domain.com]
I also see each of the passive mailboxes on MBX1 frequently change to 'Passive Disconnected and Healthy' and shows bad copy unit 1. It's like this for a few seconds, then goes back to normal.
In testing, I activated one of the passive copies on MBX1. The transfer succeeded, but when I tried to reactivate that copy on MBX2, I get these errors:
Error: The database action failed. Error: The database was not mounted because it has experienced data loss (2 logs) as a result of a switchover or failover, and the attempt to copy the last logs from the source server failed. Please check the event log
for more detailed information. Specific error message: Attempt to copy remaining log files failed for database Mailbox Database 1\MBX2.
Error: The Microsoft Exchange Replication service failed to determine if the log files in database 'Mailbox Database 1' are divergent from the source copy on server 'MBX1.domain.com'.
Error: An error occurred while communicating with server 'MBX1'. Error: A secure channel could not be established. [Database: Mailbox Database 1, Server: MBX2.domain.com]
The Copy Queue length is 5 and counting.