I am trying to setup my ISP router and my TPLink TL-WR741N router to share the same subnet.
The ISP router is connected to a fiber optic cable (Internet connection), and I'm running an Ethernet cable from the ISP router LAN 1 port to the TP-Link router's LAN 1 port. I have disabled DHCP on the TP-Link, and set its IP to 192.168.1.2 since the ISP one is 192.168.1.1.
When I connect to the TP-Link router with WiFi, I can ping other computers which are connected to the ISP router and the other way around. I can also ping all IPs. However, I can't open any web pages. I found out that the DNS is not working on the TP-Link router. That can be fixed by manually adding DNS servers in the adapter properties on Windows.
That's more like a quick fix however. Is there any other way I can fix this on router level?
I forgot to mention that there are two places where I can add the DNS servers on the TP-Link router:
- On the DHCP settings, which are disabled
- On WAN port settings, which is also not used