Can't use my router as access point - getting error "WAN ip and LAN ip are in the same subnet"
I have 2 routers of TP-LINK, the last one I bouthg, is Archer C2 (Main router), get IP from ISP, working great and all is good.
DHCP is between 192.168.0.100-255
My old router is TL-WR841N/TL-WR841ND V11 (firmware was upgrade to the last one from official site).
Now, My main router (192.168.0.1) is connect to my old router that I need to be my access point.
I saw that old router made his LAN, and using 192.168.1.1 as DG, and DHCP between 192.168.1.100-255
The IP he got from main router is 192.168.0.143, so as the guide video say's, I try to change LAN IP to 192.168.0.2, but I get massage say: "WAN ip and LAN ip are in the same subnet".
Then unpluged the WAN from my network and connect only with my PC to the router, and it's work, but after I recconect the router to network ( this time to LAN port ), I can't reach out to the internet.
What did I do wrong ?