Ziggo wifi modem problem with providing ip address for a second router.

Hi!

I tried connecting a second router to a ziggo modem because the signal can't reach some parts of my house but when I connect my laptop, it can't obtain an IP address from the router.

I also tried a different laptop and 2 smartphones because I thought that the laptop was the problem, but they all have the same issue.

The second router is connected to the 1st router through a LAN cable, and I'm using a Linksys WRT160NL.