CARP Sync Problem

[Fund]

Dear All,

I have 2 pfSense VM.

Master version: 2.3.4
Backup version: 2.3.2

I configured CARP. Everything seems is ok. But master didn`t replicate its configuration to backup.
HA, VIP, Firewall Rules configured. Two VM ping each other.

But when i go to Backup server i see this. See attachment.

[jimp]

The configuration versions of pfSense must be identical on both units.

It can't synchronize from 2.3.4 to 2.3.2 because they have different configuration formats

https://doc.pfsense.org/index.php/Versions_of_pfSense_and_FreeBSD

2.3.4 is revision 15.8, 2.3.2 is 15.5. Attempting to synchronize that could cause a bad configuration to be loaded on the backup unit.

Upgrade both to 2.3.5-p1 (or preferably 2.4.2-p1) and try again.