remotewebaccess.com not updating IP address or certificate

Recently noticed that the IP address, and certificates, for various remotewebaccess.com (AnywhereAccess) sites – on Server 201x Essentials – were not updating.

The cause is the retirement of earlier TLS versions, that Microsoft decided not to push an update out to Essentials servers to tell them that connections would no longer work… The solution is to force .NET to use TLS1.2 via a set of registry entries:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\v2.0.50727]
“SystemDefaultTlsVersions”=dword:00000001
“SchUseStrongCrypto”=dword:00000001

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\v4.0.30319]
“SystemDefaultTlsVersions”=dword:00000001
“SchUseStrongCrypto”=dword:00000001

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\.NETFramework\v2.0.50727]
“SystemDefaultTlsVersions”=dword:00000001
“SchUseStrongCrypto”=dword:00000001

[HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\.NETFramework\v4.0.30319]
“SystemDefaultTlsVersions”=dword:00000001
“SchUseStrongCrypto”=dword:00000001

Discussion and details can be found on a Microsoft Q&A.