pfSense

hi all,

i have recently problem with my setup

i have two PFsense instances on ProLiant DL20 Gen9 with two onboard network ports and two four ports cards (HP Ethernet 1Gb 4-port 331T Adapter) each

i had the two instances working from three years

recently the backup instances changed the lan static ip (assigned 172.30.0.3) to vip (172.30.0.1) and when it finds conflict it changes to (0.0.0.1)
as attached images

i don't know what cause this

they worked fine till last week

i disabled syncing vip from master to backup and all remaining options are on and syncing

ia also changed vhid from 2 (old setting) to 60 (new settings)

and when i turned on vip sync , the backup instance changed the lan ip to vip address

and other interfaces remain same and working and vip on other interfaces worked normally

i can access the gui from the others interfaces normally but not from lan