FortiGate 50G 7.6.6 HA Pair keep going into "Conserve mode"
Is anyone else having this issue or have had this issue in the past?
The firewall will show its memory at about 83 to 85% on the graph.
When this happens to it seems to kill routed network connectivity, I believe it's DNS that is handled by the Fortigate that is dying but I don't know that for sure.
I'm not the one troubleshooting it directly so I'm only getting some information. I do know this has happened before as well and simply restarting the active firewall allows the system to fall back to the secondary which doesn't have the issue for quite a while, but then it will come back.