Second server failsAnswered

In the Upload the Update section we have added 2 ftp sites. The upload is working fine (we have uploaded many versions in the last months and they have been downloaded successfully).

In the Dowload Sites section we have added 4 http sites (2 for each server: with and without "www").

Today our first site is down. We thought that the updates will work from the second site, but this is not happening. The update process is failing.

Can you help us?

Thanks

It seems the second server returns "Could not create SSL/TLS secure channel.".

Tha solution here https://wyday.com/forum/t/3882/error-downloading-could-not-create-ssltls-secure-channel/#post-22523 is:
"Use .NET 4.0 version of wyUpdate, and fix your registry settings."

Where do I find ".NET 4.0 version of wyUpdate"?