If you have problems with the activation of empower please follow the instructions below:
An activation is only triggered when a user has actually installed empower and starts PowerPoint with the activated empower Addin.
Our activation server is accessible at the address activate.madeinoffice.com and activate.empowersuite.com via port 443. This address must be reachable from the client.
Under certain circumstances, the connection must first be allowed via a proxy (and possibly a firewall).
If you still have problems with the activation, please contact the support with the information when you last tried to activate and your public IP address. You can find this out by visiting the following website: https://dnsleaktest.com