No network after connecting wifi router.

[Raanaa]

I am trying to connect a "D-Link DIR 600M N150 Wi-fi Router" with a "D-Link ADSL2+Router DSL-2520U". All connections are fine and correct. But I am having some trouble configuring the Wi-fi router. Any how I configure it, the internet connection goes off and as soon as I disconnect the Wi-fi router, the internet connection comes back.

If any other information is required, please ask?

Any help is appreciated.

 

[Nuwan Fernando]

You'll need to configure the DHCP on both so that they will not conflict with each other.
Have you connect the Wifi router with it's WAN port?

 

[Raanaa]

You'll need to configure the DHCP on both so that they will not conflict with each other.
Have you connect the Wifi router with it's WAN port?

As I said, all connections are fine. Just tell me how to "configure the DHCP on both so that they will not conflict with each other".

Thanks for reply.