An error similar to this may be seen:
TPAM-appliance (192.168.1.100) caught an unexpected exception while performing task Add 1 files to DatabaseBackupSet://192.168.1.101: Could not connect to net.tcp://192.168.1.101:8000/FileTransfer. The connection attempt lasted for a time span of 00:00:21.0132924. TCP error code 10060: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 192.168.1.101:8000. This alert was generated at 08/20/2015 11:25:11
If this alert is seen once; this may have been caused by a brief network event. The Replication process will correct any differences on the next run, and the alert should not repeat. Confirm the TPAM Cluster is healthy.
If the alert does repeat, further investigation may be required to ensure that Replication is able to occur.
Ensure that there are no known network issues; such as bad switches or cables, blocked ports etc..
Review the network configuration for any recent changes that may have affected communication within the cluster. Ensure the required ports remain open.