I found this explanation (on several unofficial sites):
"Problem: When I open msinfo32 Device Manager it tries to connect to the
internet. It is sucatreg.exe (Windows catalogue registration) knocking
on the door out. What is it trying to do and how do I stop it doing it ?
Possible Solution: Most likely you have an "unsigned" driver that
sucatreg.exe is trying to update a driver for or you may have a damaged
catalog. In Control Panel, double-click Internet Options, click on the
TAB labeled Advanced, scroll down the list to the heading of Security,
and Uncheck the option “Check for publisher’s certificate revocation.”,
Then click OK. That should fix it."