You need guidance.
You need guidance.
This scenario has popped up often when dealing with home WiFi and the poor router/modem models provided by ISPs (like the Netgear 7550). There are numerous choices, which can quickly become confusing. The most affordable route is laying CAT5 cable wherever needed. If you reside in California, opt for "Plenum" cable to avoid fire hazards. With drywall and 2x4 walls plus an exposed attic, you're in luck—it’s straightforward and usually done over a weekend. For a less intrusive setup, consider a mesh Wi-Fi network using devices like the Ubiquity AmpliFi HD. It performs well in branch offices and is reliable, though it can slow down bandwidth with more coverage. These systems let you add multiple nodes and optimize performance if they’re smart enough. If you prefer staying wireless, running Ethernet to POE access points works too—just need injectors or a switch connected to your router. Based on what you’re considering, a mesh network seems like the most promising direction. Let me know your thoughts, and feel free to share any tweaks you make with the Ubiquity setup. Also, if you use the AmpliFi HD, there are specific settings that can fine-tune the performance.
You linked the second router to the first via a LAN port, not a WAN connection. In this setup, the second router functions like a switch but with its own wireless capabilities. Assign an internal IP address to the second router so you can control it, ensuring its IP falls within your main address range. For instance, if the gateway is 192.168.0.1 and the range spans 192.168.0.2 to 192.168.0.200 with a subnet mask of 255.255.255.0, the second router should be set to 192.168.0.201. Disable DHCP on it as well. Then connect the third router to the second (or first) LAN using the address 192.168.0.202 and continue the process. This method is cost-effective if you have older routers. Otherwise, look up "wifi repeater" on Google.
An access point functions like a router but only broadcasts wireless signals. If you relocate the modem, you'll likely need to connect the router and establish a cable to your PC. You can also run another cable from the router to a central location in the house (or basement) and install the access point there. Alternatively, consider several access points for coverage. Some users recommend Wi-Fi mesh systems, though they tend to be more expensive. I prefer access points over extenders or a new router because they only offer limited improvement and can be a waste of money. It's better to invest a bit more initially and set it up correctly. If running cables isn't ideal, you might use powerline adapters, but expect slower speeds. Testing different setups is advisable since performance varies depending on your needs.