Two routers, two computers. One computer can't get to internet from one router. Everything else is as expected.

[jqning]

I have two routers in the house. One is the Comcast modem/router, the other is an ASUS RT-N66U.

The Comcast router goes out to the internet. The ASUS connects to the Comcast with a cable.

I usually connect to the internet by hitting the ASUS, which I use because of its wireless capabilities. However, I have some desktop servers plugged into the Comcast, so I periodically connect to that router to RDP onto the servers.

The problem is that one of my laptops won't hit the internet while connected to the Comcast router. In other words, I can be using two laptops side-by-side, connected to Asus and interneting just fine. I switch both computers to the Comcast and one internets just fine and the other does not internet at all. Lastly - when I connect to the Comcast router with the two laptops, they can see the network resources, and eachother.

I am looking for any advice. The first place I am thinking I should look is if there is any setting or something obvious about the non-interneting computer that I should check out.

This diagram shows my laptop connected wirelessly to the Comcast router, in this configuration I get no internet. When I connect it to the ASUS I get internet fine.

 

[kanewolf]

If you operate the Asus to an access point rather than a router, you will not have to change which WIFI you are connected. RDP will work from either WIFI source.