It's very difficult for us to give advice without these details: System details - help us to help you (click on blue link)
We can guess all day long but really .... we have no info to work on.

It sounds like you are running more than one software firewall ... bad ! Firewalls clash with each other resulting in LESS security not more. And will also have other side effects. Turn one off and allow LW full access on the other one.