We have been deploying office 2013 on some customer servers for POC’s. One new feature in 2013 is that when it starts up it looks for templates online. This is fine for a connected desktop, but does not work so well behind firewalls.
A typical Error message may look as below “Connecting to proxy Server officeimg.vo.msecnd.net”
Assuming that you to want to enable online content you can follow this KB article
The dword to add with a zero value is below