And this cable is going to the LAN port of the router?
i have got an MTNL modem installed and i am trying to connect a D-link modem and use the same as a router.
I disabled the DHCP on D-link modem and configured it properly and hooked it using a 1metre patch cable with the base modem and everything worked fine. But when i am connecting the modems using a 25metre cable i fail to get the connection. When i insert the 25m cable directly into the lan port of pc i can browse without any issues. Please guide.