Norton Security got disabled in OS X 10.11 El Capitan beta 2, blocking internet connections

I updated my 15" macbook pro with retina display(late 2013) to OS X 10.11 El Capitan beta 2 from beta 1 today and I noticed that Norton Security got disabled and showed "At Risk". I also noticed that sometimes my internet connections got blocked. Sometimes neither safari nor chrome could open web pages while sometimes only chrome could open webpages. I tried to reinstall Norton Security. And when I uninstall it, everything works fine. No more internet blocking. After I reinstall Norton Security, it got disabled and my internet connections got blocked.

I purchase Norton Security through Amazon and I am pretty sure it's the latest version since I set it up to automatic update.

Anyone noticed same problem? Or does anyone has a solution?