First off, I noticed that you have another post in this same section regarding the same problem. Please don't double post. If you make a post and find that you need to correct it, the forum does allow you to edit your posts up to one hour later.
Next, most routers come with a firewall built-in to them, and an excellent resource for configuring routers is at
Portforward.com I suggest you check there to ensure that it's not a firewall or other setting on your router.
