Hi I am getting issues from our cluster machines primary server automatically went to secondary, secondary went to primary server due to the first incident was (Isatap interface <g class="gr_ gr_302 gr-alert gr_spell gr_inline_cards gr_disable_anim_appear ContextualSpelling" data-gr-id="302" id="302">isatap</g> (XXXXX) no Longer active) we got it from event log above mentioned , same time as per second logs from system event (Cluster node 'instance name ' was removed from the active failover cluster membership. The Cluster service on this node may have stopped. This could also be due to the node having lost communication with other active nodes in the failover cluster. Run the Validate a Configuration wizard to check your network configuration. If the condition persists, check for hardware or software errors related to the network adapters on this node. Also check for failures in any other network components to which the node is connected such as hubs, switches, or bridges.)
Then automatically failover happens as per role.
anyone, Please give some input on this issue