1965012 - Diagnostic Agent cannot connect to Solution Manager. Error: "End of stream is reached" - Solution Manager 7.10

Diagnostic Agent cannot connect to Solution Manager.
Error:
com.sap.smd.connector##com.sap.smd.connector#######Thread [Connector,5,main]##0#0#Info##Plain###
[SMDAgent.IConnectionStatusListener.statusChanged] SMD Agent connection status changed from CONNECTING to LAST_CONNECT_ON_ERROR#
SMDloggerSystem##SMDloggerSystem#######Thread[Connector,5,main]
##0#0#Warning##Plain###Connecting to SMD server p4://<SolutionManagerJavaStack>.corp:<PORT> failed - error counter: 2589 - com.sap.engine.services.jndi.persistent.exceptions.NamingException:
Exception during getInitialContext operation. No server is running.
[Root exception is java.io.EOFException: End of stream is reached
unexpectedly during input from Socket
[addr=/<SolutionManagerJavaStack>.,port=<PORT>,localport=<LOCALPORT>]]#

SMD Agent SMDAgent loopback , KBA , SV-SMG-DIA-SRV-AGT , Agent Framework , Problem