If online activation fails due to network or proxy issues (common with error 0x8004FE33 ), use the phone system.
Activation will fail if your server's clock is out of sync with the BIOS or internet time. product key windows server 2008 r2 standard fix
To fix product key and activation issues for Windows Server 2008 R2 Standard, you can use the Windows Software Licensing Management Tool ( If online activation fails due to network or
By using the slmgr and DISM tools, you can bypass most GUI-related errors and restore your Windows Server 2008 R2 Standard environment to a fully licensed state. product key windows server 2008 r2 standard fix