I’ll provide the next troubleshooting actions.
Since Windows Server 2008 R2 is an older operating system, standard online activation often fails due to modernized security requirements on Microsoft's end. Step 1: Synchronize System Date and Time windows server 2008 r2 activation error 0x80072f8f work
If telnet fails, open outbound to *.microsoft.com . I’ll provide the next troubleshooting actions
: Outdated root certificates or overly restrictive firewalls and proxy servers can block the necessary communication paths. Common Solutions windows server 2008 r2 activation error 0x80072f8f work