Try hitting enter after you type it?
(If that actually is your problem, you're an idiot)
You're typing in the IP address to the address bar, right? Not the default gateway? That's what you said you were going to, and that would explain why it isn't working...
You need to set up a static IP to host. Go to this link:
http://www.portforward.com/networking/staticip.htm and choose the link with your operating system. Follow the directions on it. Once you're done that, you will need to forward the ports.
You said you're using a Netgear router. Can you figure out what model it is? When you do, visit this link:
http://portforward.com/routers.htm and scroll down to NETGEAR. It's the 24th brand down on the 3rd column to the right. Click on your router's model. When the next page loads, find the W section. It's almost at the bottom, it's all the way on the right of the page. Find Warcraft III, and click on it. Follow all the directions on that page.
Hopefully, you can now host. Load up WC3, join B.net, and create a custom game. See if anyone joins. To make sure that it's not that nobody really wants to play, you should host something really popular, like DotA. If someone joins... There you go, it works. If not... You screwed up somewhere. Go back through the directions and try again. Do not pass Start. Do not collect $200.
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My Warcraft III Tool CollectionIf you want to chat/game with me:
Blizzard: Senethior459#1962
Discord: Kyle#7409
Steam: Spacekidkyle