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Hannes_Rapp_162
Nacreous
One common issue to check for...
4. Ensure that both F5 1600 units can ping each other from the high-availability VLAN
What is your Port Lockdown setting (SelfIP)? Make sure it's not 'Allow None'. Preferred configurations for HA VLAN/SelfIPs are 'Allow Default' (the safe bet regardless of BigIP version), or 'Allow Custom' which includes all the ports that HA daemons use (varies across BigIP versions)
Hannes_Rapp_162
Jun 20, 2016Nacreous
Ok. Have a look into /var/log/ltm file, issue a grep for 'daemon_heartbeat'. That file usually directly reports any changes to HA status, and the reason behind it