To activate or renew your subscription to Microsoft electronically, you must have a modem and an Internet or e-mail account. You can get an account through an Internet service provider or through your corporate network. If you don't have an Internet or e-mail connection, then you can register by telephone by following the instructions in the Office Activation Wizard.
Check your network connection and try to activate or renew you subscription later, when there's less network activity. You can also register by telephone by following the instructions in the Office Activation Wizard.