Try another web browser for the freezing issue.
The templates on the 700 can only be on the Fiery since it has no internal controller, and since the 4112 has a Fiery, then those templates will work just fine.
So in the 700 Webtools choose Export
Then save to desktop, and go to the 4112 Fiery and import them.
But if you made changes to the default repository on the 4112, you broke the connection for scan to the Fiery, if that is the case you would need to reset the 4112.
And if you are using Hostnames instead of IP addresses, the Fiery needs to have DNS set. Which is done via CWS5.
Server > Configure
Network > Protocol > TCP/IP > DNS
