Hello, all. I have been struggling with my home internet for a while due to the builder's poor design choice of not putting in any ethernet outlets anywhere on the second floor of my home. The only connection available upstairs is coaxial. That's great and all, but I have AT&T fiber, not cable. There are three Cat5e outlets downstairs. For a while, I was limited to WiFi upstairs. I decided to run some Cat6 drops throughout the house and set it up to have one going from the AT&T modem/gateway to the network panel box in the master's bedroom closet upstairs and then dropped two cables from the attic into the room we use as an office, replacing the existing coaxial outlet with dual ethernet ports. In the network panel, I hooked the line from the modem to a multi-port unmanaged switch that the two lines running into the office are also plugged into.
What I am trying to do at this point: replace the switch in the network panel with a basic router (and disable the WiFi broadcast from it so that the only wireless network in the house is from the AT&T gateway) and then place the switch in the office to be able to have a hardwire connection for more than just two devices (so I am not limited to only the dual port outlet). Since the AT&T modem is a gateway/router as well, I am trying to figure out which settings I need to change on that as well as on the router I will be using to ensure that things work correctly and there are no issues with IP addresses being issued to all devices, connecting to the Internet, etc. I am no stranger to building computers, but when it comes the intricacies of networking, I am not confident at all. Any input you may have to help me figure this out will be greatly appreciated. Thank you!
What I am trying to do at this point: replace the switch in the network panel with a basic router (and disable the WiFi broadcast from it so that the only wireless network in the house is from the AT&T gateway) and then place the switch in the office to be able to have a hardwire connection for more than just two devices (so I am not limited to only the dual port outlet). Since the AT&T modem is a gateway/router as well, I am trying to figure out which settings I need to change on that as well as on the router I will be using to ensure that things work correctly and there are no issues with IP addresses being issued to all devices, connecting to the Internet, etc. I am no stranger to building computers, but when it comes the intricacies of networking, I am not confident at all. Any input you may have to help me figure this out will be greatly appreciated. Thank you!