Don't have 3 firewalls running at once - you won't be more protected, the firewalls will just conflict with each other. Choose 1, configure it to allow LW & turn off the other 2. Once you've done that, restart LW.

Try to find the model of your Netgear router. If no model's showing on top of the router, turn it upside down & have a look underneath.

Have you been through all of the fixes in this thread?
If LW Will Not Connect