Double Router Port Forwarding

[LeaderShip]

Hey guys, i have 300Mbps WLAN ADSL2+ Router which is connected to TP-LINK Archer C7,
I can forward ports on 300Mbps WLAN ADSL2+ but on Archer C7 which is my main router i cannot open ports, Everything is right in Archer C7 port forwarding but i dont know why its not opening the port

 

[silentplanner]

to give rights of port forwarding to TP-LINK Archer C7 u need to forward its wan ip in ADSL modem by entering router's WAN gateway ip in to ADSL modem's DMZ by doing that u just forwarded port forwarding rights to your router now simply forward port on your router u can take help on these links:
http://portforward.com/help/doublerouterportforwarding.htm
http://www.pcwintech.com/how-setup-two-or-more-routers-together-port-forwarding-port-triggering
or u can get help from the tutorial
[video="http://www.youtube.com/watch?v=B4fJJzh-8jc"][/video]