When I asked Webroot to scan my Mac it came back that it could not connect to the internet.

Hi suepoarch
 
Welcome to the Community Forums.
 
Sounds like a faulty install in which case I would advise an unistall and then a clean reinstall of WSA.
 
For the uninstall please see this previous post for details on how to undertake that. For the subsequant clean install please follow the instructions below:
 

• Make sure you have a copy of your 20 Character Alphanumeric Keycode! Example:SA69-AAAA-A783-DE78-XXXX
• KEEP the computer online for Uninstall and Reinstall to make sure it works correctly
• Download a Copy Here (Best Buy Subscription Mac users click HERE)
• Uninstall WSA and Reboot
• Install with the new installer, enter your Keycode and do NOT import any settings if offered by the installer; to as you can set it up as you like once it's done
• Let it finish it's install scan
• Reboot once again

And then try scanniong again...all should be OK now, but if not then please post back and we will take another look for you.
 
Regards, Baldrick