Norton Internet Security causing problems with internet access

This morning, for the first time in a month, Norton Internet security is causing severe problems with my internet access. I am operating an iMac 3.4 GHz Intel Core i7 16 GB 1333 MHz DDR3 with OS X version OS X 10.8.2 (12C60).

 

Everytime I enable Firewall and Safe Surfing, my internet access is completely blocked.

 

Please help!

Thank you so much! Seems to have solved the problem...Mac is working normally now. :manvery-happy:

This morning, for the first time in a month, Norton Internet security is causing severe problems with my internet access. I am operating an iMac 3.4 GHz Intel Core i7 16 GB 1333 MHz DDR3 with OS X version OS X 10.8.2 (12C60).

 

Everytime I enable Firewall and Safe Surfing, my internet access is completely blocked.

 

Please help!