It's fine to run NAT router & a softw firewall together. I was refering to not using 2 softw firewalls. There apparently are much better ones out there than XP's firewall. I'm not the one to ask for recommendations.

Try the test page link at the bottom of my previous post. If you can't reach the site then it's either your router or isp probably at fault. Without port forwarding you may still be able to connect but will partially block LW.