Access of the mobile through the wifi (Fritzbox connected to the balanced router aka DHCP server) works so I can backup my pictures on the NAS. But I want to access the NAS from outside, that is...

Model : Hardware Version : Firmware Version : ISP : I have a TL-R470T+ balanced router with 2 service provider router connected to the internet: Unity media connect box via cable and Speedport W724V...

Found it. See Maintenance Diagnostics Online Detection

There is no Ping in the menu of TL-R470T+. Where can I add an IP Adress then? aditya_a_a wrote Hi sylvanas, Thank you for the solution, it seems to be finally working for my TL-R470T+ load balancer....