VVR replication may fail if Symantec Endpoint Protection (SEP) version 12.1 is installed
SEP may block VVR replication if the replication packet size is set to greater than 1300 bytes. (2598692)
Workaround:
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Ensure that the required ports and services are not blocked by the firewall. Refer to the Installation and Upgrade Guide for list of ports and services used by SFW HA.
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Configure the SEP firewall to allow IP traffic on the systems. On the SEP client's Network Threat Protection Settings dialog box, check Allow IP traffic check box.
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