Traffic has been blocked from this application: (svchost.exe)

All,

I have tried various approaches from this site to stop the notification on Windows 7 home premium (SP1)

1.  Ran Malware recommended ( Malwarebytes Anti-Malware 1.75.0.1300 with a database updated to today) - detected ESPN tracking cookie and nothing else.

2.  Ran a full scan with Symantec EndPoint Protection  (12.1.2100.2093) - nothing. 

3.  Disabled Internet Protocol Version 6 (Tcp/IPv6) from both the LAN and the wireless network.

I could simply turn off all notifications but that leaves me vulnerable from a real attack... don't want to do this.

My question, hopefully answered in Chaplain Friendly language, is WHY is the notification happening and what can I do about it to make the problem stop, not the notification. 

Chaplain Ross, USN