Please enable TLS 1.0 and then run the configuration again.
Service Bus for Windows Server 1.1 supports only Transport Layer Security (TLS) 1.0.
You can refer to the document here for the full instructions to update and enable TLS 1.1/1.2: Add support for TLS 1.1 and TLS 1.2 on Service Bus for Windows Server 1.1.
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