Reply to Pondus and bob3160,
Pondus: Just the standard "Server not found" browser message.
bob3160: Thanks for the suggestion. I'll uninstall/reinstall w/o Secure DNS next time I'm doing some maintenance on the machine.
Simply go to programs and features, select avast and then select change. Uncheck what you don't want, when the reboot the system after the operation finishes.