105519: Invalid response to message received from peer unit
Cisco ASA is a security device that provides the combined capabilities of a firewall, an antivirus, and an intrusion prevention system. It also facilitates virtual private network (VPN) connections. It helps to detect threats and stop attacks before they spread through the network.
Message: %ASA-3-105519: (Primary|Secondary) Invalid response to message_name message received from peer unit peer-ip: type message_type, version message_version, length message_length.
Event 105519 is generated when an unexpected message is received in response to a failover control message. The name, type, version, and length of the message are specified in the message, in addition to the IP address of the peer unit.
How could you resolve this situation?
Collect details about the events leading up to the error and contact Cisco TAC.