Thanks for all the tips. To load the Manchester update I did it manually, so I'm good there.
But. . .
I have tried everything suggested and everything I know to do. Uninstalled. Reinstalled. Cleaned and repaired registry. Using Windows Firewall, so I checked everything there (inbound, outbound, etc.). I even turned it off and it still reported "no connection. On the Windows end, everything is good. Did all the Windows updates.
Still, everytime I run Command Center it tells me it cannot find an internet connection. Everything was fine last week and I have not installed any new software.
Very frustrated and perplexed. I can do the manual download, but it is cumbersome to check ALL of my other Cakewalk products one at a time for updates.