trying to scan my MacBook Air but scan fails and says unable to reach internet?

Hi bbondurant and welcome.
 
I am not proficient on the Mac so I cannot be of much help to you in that area.  We do have people who are really good with the Mac so keep checking back and perhaps @ or one of the other Mac people will look at this when  they check in.
 
Regards,
Dave

Well, @ is away from her computer but she did contact me and ask me to provide an excerpt from one of her previous posts regarding a permission check and if that does not work to please submit a support ticket.
 
"
I am sorry to hear about your issues that you are having.  If you have not contacted support, I would recommend doing so. It  will need one of two things done.  The first is something that you can try without support's help and that is a permission fix.  The other will require support to use SUDO commands. 
 
The Mac operating system relies on permissions for most tasks. If these permissions are incorrect, they can cause a variety of issues, both with your programs and with computer performance itself.
 
To check permissions on the Mac OS:

1. Navigate to Applications > Utilities > Disk Utility.

Note: The Disk Utility feature is advanced and powerful. Any action you take using the Disk Utility is at your own risk. We recommend you only use the Disk Utility under instruction by a qualified technician.

2. Click the Hard Drive name, e.g. Macintosh HD, in the left panel.

3. Under the First Aid tab, select Show details.

1. Click Verify Disk Permissions. This operation may take some time to complete. 5. If the operation finds permissions issues, fixing them can resolve the issue you have reported. Click Repair Disk Permissions. This process may also take time to complete. 6. Once the repair process is finished, restart your computer.

 

1. After restarting, please test the issue you have reported. See if Webroot will install or it still gives you an error.

 

1. To uninstall go here for instructions. http://www5.nohold.net/Webroot/ukp.aspx?pid=12&app=vw&vw=1&login=1&json=1&solutionid=1992&

 

1. You can go here to install Webroot http://www5.nohold.net/Webroot/ukp.aspx?pid=12&app=vw&vw=1&login=1&json=1&solutionid=1991&

 
If you continue to have issues then please send support a ticket  free of charge with an active subscription.and let them know that you have already dione a permission fix.
 
Hope this helps and please keep in touch with your progress so that we can help others with same or like issues.
 
 
Kind Regards,
 
 
Sherry"
 
Best Regards,
Dave