I have a main router at home and the internet provider has disabled wlan from this router (I can activate it for an monthly fee, but I dont want to pay for that). I have bought a TP Link Router N that I want to connect to my main router to provide wlan. I set the IP adress of the TP Link Router to 192.168.55.1
to avoid DNS conflicts.
My question is:
Should I enable DHCP server on the TP Link Router and should I plug the connection cable between the routers in the WAN or LAN port of my TP Link Router? The other end is in the LAN port of my main router.
When I activate DHCP on my TP Link router and allow him to give ips in the range of 192.168.55.100
to 192.168.55.199
and put the cable in the WAN port then I can connect with my other devices to the WLAN TP Link Router and use internet. My devices get an ip in this range.
I also figured that everything still works if I disable DHCP on my TP Link Router and plug the cable in the LAN port. I found this recommendation here.
My question is, which of these aproaches is correct, or what exactly is the difference? Does one of them perform better?