Unable to WinSCP to the SpanVA.
WinSCP can connect to upload.elastica.net (Directly to CLoudSOC).
SpanVA uses a restricted shell. Versions of WinSCP newer than 5.9.3 (Build 7136) are unable to connect to the SpanVA to test connectivity.
Use Putty or some other SCP tool.
WinSCP version 5.9.3 (Build 7136) and older should work.
Newer versions WinSCP do not work because of the restricted shell in the SpanVA.
General detail on using WinSCP with a restricted shell