teredo tunneling pseudo interface problem

Having problems with my 4g mobile broadband connection. Keep getting messages that the ip address has disappeared from my mobile adapter zte and then get an ip address to teredo tunneling which also often disappears and then norton internet security blocks my internet connection altogether. Some days it works without problem and other days my internet goes down 50-60 times.

Is there any way of configuring norton to avoid the problem? Believe it has to do with the Ipv4 /Ipv6 situation.