The CSS daemon is terminating due to a fatal error
oracle rac 12.1.0.2, 4 nodes, after an other node restarted,this node was restarted too.The alert.log shows
2022-03-30 17:25:44.142 [OCSSD(21125)]CRS-1612: Network communication with node db-t-012 (2) missing for 50% of timeout interval. Removal of this node from cluster in 14.850 seconds
2022-03-30 17:26:04.246 [OCSSD(21125)]CRS-1612: Network communication with node db-t-012 (2) missing for 50% of timeout interval. Removal of this node from cluster in 14.910 seconds
2022-03-30 17:26:24.363 [OCSSD(21125)]CRS-1612: Network communication with node db-t-012 (2) missing for 50% of timeout interval. Removal of this node from cluster in 14.080 seconds
2022-03-30 17:26:31.400 [OCSSD(21125)]CRS-1611: Network communication with node db-t-012 (2) missing for 75% of timeout interval. Removal of this node from cluster in 7.040 seconds