Smart Firewall blocking Internet connections

Hi,

I've been having trouble with my LAN connection to the internet, its been really intermittent and now I have no connection at all.

So suspecting that it was my hardware I purchased a new motherboard but before it had chance to arrive I thought I'd test my firewall.

If I turn off Norton Smart Firewall and turn on the windows firewall I get a connection.

I checked that the Smart Fire wall is set to not block but my connection it fails every time I turn Norton Smart Firewall on.

Is this a bug?

Can I reset Smart Firewall if so how?

 

Thanks for your help and advice in advance

Joe9090