While adding hosting connection to vSphere it failed with an error ""The host server cannot be contacted, URL Invalid""

Below is the exception can be seen in CDF traces
System.ComponentModel.Win32Exception (0x80004005): The client and server cannot communicate, because they do not possess a common algorithm

Workaround 1:

Enable local security policy – “System cryptography: Use FIPS compliant algorithms for encryption, hashing, and signing” which will allow SSL Handshake to take place between the Controller and vSphere on TLS 1.0.

Workaround 2:

Enable TLS 1.0 and TLS 1.1 on vCenter


Workaround 3:

Upgrade XenDesktop to 7.14.1 and above.

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Problem Cause

vCenter was configured to accept connections only from TLS 1.2. Till XenDesktop 7.13, TLS1.2 will not work from XD -> VSphere.