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[Solved] How to Fix VMware vCenter Converter Standalone show SSL Exception Error 14077102 SSL23_GET_SERVER_HELLO unsupported protocol

Problem: When VMware vCenter Converter Standalone tries to connect the source vCenter (5.5), after enter the Destination System details and click ‘Next’, an error show:

A general system error occurred: SSL Exception: error:14077102:SSL routines:SSL23_GET_SERVER_HELLO:unsupported protocol

VMware vCenter Converter error

By default, VMware vCenter Converter Standalone 5.x and 6.0 default the converter worker encrypts the data stream using SSL. Encrypting the traffic increases security, but it can decrease performance. For ESX 5.5 or older version that need TLS 1.0.

Solution 1: Disable SSL encryption in VMware vCenter Converter Standalone 5.x and 6.0

Step 1: Take a backup of the converter-worker.xml file. By default, this file is located at:

Windows 7/Server 2008 and Later – C:\ProgramData\VMware\VMware vCenter Converter Standalone
Window Vista, XP and 2003 Server - %ALLUSERSPROFILE%\VMware\VMware vCenter Converter Standalone
In older Windows versions – %ALLUSERSPROFILE%\Application Data\VMware\VMware vCenter Converter Standalone

Step 2: Open the converter-worker.xml file using a text editor.

Step 3: Locate the tag pair <useSsl></useSsl>. It is located inside the <nfc> tag and has a value of true.

Step 4: Change the value to false.

Step 5: Save and close the file.

Step 6: Restart the VMware vCenter Converter Standalone Worker service on the machine.

Solution 2: Enable TLS1.0

Due to TLS1.0 disablement in new versions but not in vCenter 5.5. As workaround you can enable TLS1.0 in converter-server.xml, converter-worker.xml and converter-agent.xml by changing tag from 123422720 to 56313856 and then restart services. put the same option in converter-client.xml placed in installation folder.

converter-client.xml: %ProgramFiles(x86)%\VMware\VMware vCenter Converter Standalone\converter-client.xml

Solution 3: Upgrade 5.5 to latest available

Reference

VMware Knowledge Base: Disabling SSL encryption on VMware Converter Standalone 5.x and 6.0 (2020517)

Alex Lim is a certified IT Technical Support Architect with over 15 years of experience in designing, implementing, and troubleshooting complex IT systems and networks. He has worked for leading IT companies, such as Microsoft, IBM, and Cisco, providing technical support and solutions to clients across various industries and sectors. Alex has a bachelor’s degree in computer science from the National University of Singapore and a master’s degree in information security from the Massachusetts Institute of Technology. He is also the author of several best-selling books on IT technical support, such as The IT Technical Support Handbook and Troubleshooting IT Systems and Networks. Alex lives in Bandar, Johore, Malaysia with his wife and two chilrdren. You can reach him at [email protected] or follow him on Website | Twitter | Facebook

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