解决方案
Please try to configure .NET Framework to support strong cryptography to use TLS 1.2 or enable TLS 1.0 from registry.
For configuring to support strong cryptography > press Windows key + R > type regedit > navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft.NetFramework\v4.0.30319 > add a new registry entry named SchUseStrongCrypto > set its type to DWord > set its value = 1.(or creating a new registry entry by using PS command)
For enabling TLS 1.0 > press Windows key + R > type regedit > navigate to Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\ > TLS 1.0 > Client > Enabled DWord value 1.
More details, see this doc: Configure for strong cryptography and this thread: Unable to login to VS 2013 upgrade 5.