Hey alphyjames,
You might want to check out this thread as it appears to be a similar handshake issue after upgrading.
https://community.smartbear.com/t5/ReadyAPI-Questions/getting-Error-getting-response-javax-net-ssl-SSLException-Couldn/td-p/198807
The big takeaway from that thread is that Handshake errors generally occur when there is a different in TLS of the application endpoint and ReadyAPI. Correcting the version in the ReadyAPI.vmoptions file should resolve this. The file is located in your ReadyAPI bin folder and you'll want to add in the following line:
-Dsoapui.https.protocols=<TLSv1.2, TLSv1, SSLv3>
Just specify the version you want to use.
I did come across that solution but unfortunately it did not work . Passed
the values as TLDv1.2--
