VMware converter agent crash on source Windows 2012 machine

Converter job fails immediately as soon as it begin the conversion process.

converter_crash.jpg

You may see following in UI as well as in converter log.

reason = "An existing connection was forcibly closed by the remote host", 
msg = "A general system error occurred: An existing connection was forcibly closed by the remote host"

It’s important to check event viewer log of converter agent on source machine. For e.g. it may crash during conversion process like below.

Log Name:      Application
Source:        Application Error
Date:          4/25/2019 11:26:03 AM
Event ID:      1000
Task Category: (100)
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      SourceMachine.domain.local
Description:
Faulting application name: vmware-converter-a.exe, version: 8.6.1.25023, time stamp: 0x56b9ba76
Faulting module name: MSVCR90.dll, version: 9.0.30729.6871, time stamp: 0x4fee6073
Exception code: 0xc0000005
Fault offset: 0x0006cfae
Faulting process id: 0x28c8
Faulting application start time: 0x01d4fb930e2188b3
Faulting application path: C:\Program Files (x86)\VMware\VMware vCenter Converter Standalone Agent\vmware-converter-a.exe
Faulting module path: C:\Windows\WinSxS\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.6871_none_50944e7cbcb706e5\MSVCR90.dll
Report Id: 94eebc55-6787-11e9-942d-e0db553a662d

If you see same agent crash then uninstall existing converter agents on source physical machine and either install latest version OR let converter server to push/install latest agent before it start conversion process. For my issue, the agent / server was version 6.1.1 build 3533306 was crashing however after installing 6.2.0 Build 846619 of agent & server worked with out any error.

If you see following error is source machine during conversion error then disable SSL encryption as per https://kb.vmware.com/s/article/2020517

Log Name: System
Source: Service Control Manager
Date: 4/25/2019 1:20:54 PM
Event ID: 7034
Task Category: None
Level: Error
Keywords: Classic
User: N/A
Computer: SourceMachine.domain.local
Description:
The VMware vCenter Converter Standalone Agent service terminated unexpectedly. It has done this 1 time(s)
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