Historically, Windows Server 2008 R2 relied on SSL 3.0 and TLS 1.0 for secure connections. Due to security vulnerabilities (such as POODLE and DROWN), Microsoft deprecated these older protocols on their activation servers. If your server attempts to activate using a protocol that Microsoft now rejects, the connection is dropped, resulting in error 0x80072F8F.
While this error can feel like a dead end, it is almost always related to or system time synchronization . Because Microsoft has updated the security requirements for their Activation Servers, older operating systems using outdated protocols can no longer "shake hands" with the activation infrastructure. windows server 2008 r2 activation error 0x80072f8f work