How To Fix The Requested Security Protocol Is Not Supported.
How To Fix this Error
The requested security protocol is not supported.
When you see above error message, it indicated that the TLS security protocol is not supported.
Many API servers nowadays required at least TLS version 1.2, when a client to establish a connection to their servers.
Windows 10 has TLS1.2 default installed so you will not encounter this problem.
TLS 1.2 update will get installed by regular windows update in Windows 7. But if your system still missing it or you’re using older version of Windows, you can fix the problem by install TLS1.2 manually.
For 32-bit windows 7 and Server 2008 R2
For 64-bit windows 7
Windows 8.1 and Windows Server 2012 R2
Backup link on our server