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Agent connecting to CEM are unable to connect: An existing connection was forcibly closed by the remote host (0x80072746) 

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Article ID: 227900

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Updated On:

Products

Client Management Suite

Issue/Introduction

Logs indicate that the connections are being forcibly closed by the gateway.  

Operation 'CEM: Connect' failed. 
Protocol: HTTPS 
Original host: servername.domain.xyz:443
Real host: servername.domain.xyz:443
Path: / 
Connection id: 123.45678
Communication profile id: {GUID of Communication Profile} 
Throttling: 0 0 0 
Error type: TLS Handshake error 
Error code: An existing connection was forcibly closed by the remote host (0x80072746) 
Error note: The connection was closed by the server during TLS handshake, check the System Event Log on the server for SCHANNEL errors

 

Cause

There were two NAT rules with a single IP address going to different servers

Environment

Release: 8.x

Resolution

Fix the NAT rules.