I just bought a D-Link 520T and am experiencing frequent disconnection where the ADSL light disappears for about a minute.. happens quite a lot.

Which page router page should I post here? It looks different from all the ZTE screenshots here.

Also, after getting a new modem out of the box, what are the additional configuration settings that needs to be changed aside from the basic connection to ensure smooth speeds?

Can someone point me to the relevant thread here on LY?