HA sync not happening in 1000C

[Shuja]

Hi, I have an HA cluster of 1000c where the configuration is not getting sync to the slave box. firmware is 5.0.7. have done factory reset on the slave box, and added to the HA cluster. sync happens for the first time and after a few days it stops syncing. checksum value differs (diagnose sys ha showcsum) any suggestion guys???

[Istvan_Takacs_FTNT]

diagnose debug enable diagnose debug console timestamp enable diagnose debug application hatalk -1 diagnose debug application hasync -1 run it and see what happens when the the cluster goes out of sync next time. Follow the HA sync troubleshooting guide to drill down in the issue and find out what exactly is causing it. http://docs-legacy.fortinet.com/fos50hlp/50/index.html#page/FortiOS%205.0%20Help/HA_failover.086.38.html

[emnoc]

Do a execute ha sync and watch the debug. Be patient, I waited on a low CPU usage cluster to sync and it took over 3mins.