If people can ping the server, but cannot activate via the command line, try the Volume Activation Management tool, it activated first time for me.
I have just reactivated my Enterprise install I did NOT change my DNS servers. I used: slmgr /skms benderrodriguez-1-pt.tunnel.tserv28.waw1.ipv6.he.net (enter and waited for successful confirmation) slmgr -ato (enter and waited for successful confirmation) slmgr -dli (shows 180 days activation again!) Happy! Now you try it.
Server's still on, I just reactivated twice.... read ...hxxp://forums.mydigitallife.net/threads/35973-Windows-8-Activation-helper Condition : Change DNS Server then shutdown, turn it on again, then run the tool above
View attachment 16540 This method is still working for Enterprise: slmgr.vbs /ckms slmgr.vbs /skms benderrodriguez-1-pt.tunnel.tserv28.waw1.ipv6.he.net slmgr.vbs /ato For me it was essential to use also the first line ! Thank you very much !