Sudden firewall issues running SAGE

I have been using SAGE without issue for the past year.  All of a sudden yesterday I couldn't open SAGE.  I received a troubleshooter message that said that my computer firewall is blocking required processes to access my data.  Then is gives me a whole list of processes that I need to add to my firewall's list of permitted programs.

I entered them all (painstakingly) into my firewall list and it's still not working.  I haven't changed my computer or computer protection software or even my ISP.  I don't understand how all of a sudden (at tax time), it doesn't work.  Help!