strange problem

main router (dhcp,ppoe,hotspot…) - eth-> <-eth - wireless router - wireless → ← wireless router - wlan-> client …OK

main router (dhcp,ppoe,hotspot…) - eth-> <-eth - wireless router - wireless → ← wireless router- ethernet-> client … data comes throu to clients computer, but not to client RB133 (It gets DHCP works, but I can’t ping the main router)

I have only put one AP behind the last wlan router (interfaces are bridged)… all routers have get IP using DHCP…

any ideas?

so you can get to the 133, you see that it gets a dhcp address but it cannot ping your edge router? Is the DHCP client on the ethernet interface, the wireless interface or the bridge interface? What are your ARP settings on all those interfaces?