I have found the answer to my problem. On the 1st router (Billion BiPAC7800N) I added the MAC address of the device to "Firewall - Ethernet MAC Filter", and hey presto, I then had internet...

Model : Hardware Version : Not Clear Firmware Version : ISP : I am trying to setup a 2nd router for wireless access. (1st router with wireless disabled) My mobile phone can connect to the wireless...