Message cannot be transferred to node & due to connection error (final)

What causes this issue?

The message was processed correctly in the SAP system. Due to a
technical fault, the connection to the server &V2& could not be
established or was interrupted. The message could not be copied to node
&V1&.


Information from external system (if available)
&V4&&V3&


Procedure for the administrator
Check the connection from the SAP system to node &V1&.

Error message extract from SAP system. Copyright SAP SE.