Well I uninstalled Avast internet security, then ran the avast removal file, reinstalled Avast internet security.
Had the same problems.
So I disabled behavior shield and firewall on desktop and laptops, still had the same problem.No wireless.
I cleared out the firewall log,changed my password on my router, removed all saved wireless profiles and added back in with new password and they work again.
I'm using the windows firewall.
I'm not turning on the avast firewall or behavior shield till you get all this figured out-
What a pain in the a** this has been.
Last time I pay for Avast!