redmouse wrote:i can't figure what is wrong.
Um, you can't hook up two routers Using the WAN port on one. Depending model router you have (which you didn't provide) the WAN port, although looking much like a normal ethernet port, is not one.
That WAN port is setup by the routers software to do specific data transmissions. It is looking for a certian type of device upstream from it to connect to. And I am not talking about the cable modem. It is a media converter at best. Doesn't do much more then convert CAT5 signals into coax. The network at the other end establishes the connection for TCP/IP packets to move and route around the internet.
That WAN port is looking for a device to supply a type of connection that a ethernet port on the other router is not going to provide. They are two ports trying to establish two different type of connections. Types that are not compatible to one another.
Either get a switch with enough ports and hook up to one of the routers or use the uplink port to connect it two the first router. Don't use the WAN port unless you intend to connect that to a device from you ISP.
"I used to think the brain was the most amazing organ in the entire body. Then I realized who was telling me this."
If ignorance were painful, half the posters here would be on morphine drips.