Running driver updater - No internet connection message

Just purchased professional version. When running Driver Updater I get a message saying "No internet connection". This is plainly wrong as the internet is working fine. Any help appreciated

It could be your antivirus/firewall that is blocking the connection.

Can you tell us:

Which Windows version (and build if Win 10) are you using?


Which CCleaner version?

What antivirus are you using?

If it's not Windows Defender then what version is your antivirus at?