I have the following network configuration in my home:
The Telsey DSL modem+router is provided by my ISP and setup configuration page is password protected from them (not default one, I tried brute force cracking it but the pass seems to be too long, they even charge you to activate WiFi on it).
I was initially using each of the secondary routers separately connected through the WAN port to the Telsey router. This of course gives a subset network limiting each device connected from one to the other. Since I cannot access the configuration of the Telsey router and wanted a unified network where each device can access each other in the local network I disabled the DHCP server in each secondary router and connected them via the LAN ports instead of the WAN ports. This way the Telsey router is responsible to give out IP addresses to every device in the network.
Now basically everything works as supposed, but the problem is that I cannot connect to the secondary routers so I can check/modify their configuration. Since I cannot check the specific IP address of the secondary routers from the Telsey configuration page I used an IP scanner to find them. However even though I try these addresses in a web browser they just time-out.
I believe I missed a configuration step in the secondary routers as the ASUS one reports 192.168.1.1 which is the default address. Not one that should be supplied by the Telsey router in the 192.168.2.xxx range.. If I am correct I have to reset them and set manually an IP address for these routers, right?
Also if the Telsey fails, it means the network will fail right? How do I prevent that?