Setting up WiFi in a big house

May 15, 2018
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I'm having trouble getting coverage in my new home. The house is 20 years old and quite big, also has a semi-detached guest house that was built recently. Curiously, neither structure has Ethernet in the walls. And while the ISP-provided Actiontec T3200M router does well inside the main building, the situation is a lot less fun in the guest house due to distance and the walls in between. I should mention that there will be at least 25 devices using the network in the future (desktops, laptops, phones, TVs and smart home devices).
So I would like to extend my network. Naturally, the ideal solution would be running Ethernet cables everywhere to set up multiple APs, but I can see it getting out of financial hand very quickly, given the size of the property. Additionally, the best speed you can get in my neck of the woods for the next foreseeable future is 50 down/10 up, which hardly justifies the expense.
I did some reading about range extenders, and I would probably like to avoid using those.
Next I found out about powerline, and it seems like something that I could use, provided the way wiring was done in the guest house will allow for it. I'm not an electrician, so I wouldn't know if there could be something to prevent a proper connection between two adapters. I think my approach would be to buy a set and test their reliability while I can return them. I know that some have a built-in wifi transmitter, but could I buy a set of wired powerline adapters, and connect a second router to the other end? Can something like that be done?
I also read that coaxial cables can substitute for Ethernet by using adapters. I believe coax cables in the guest house run all the way to the basement of the main building. What I don't know, however, if this option is advantageous over powerline, or how this system is set up. Would I need to also buy a second router to connect to the moca adapter on the other end?
Have I missed another solution to my problem? Which approach would you recommend, and what would be the special considerations? Do you think I could get away with just buying a beefy router?
Thanks in advance for your suggestions!
 
Solution
25 devices on WIFI with a single home WIFI source will not be fun. Since it sounds like you have a basement, I would recommend using it to get ethernet cabling into as much of the house as possible. Every stationary device (TV, ROKU, desktop, etc) is much better with wired than wireless. Save your WIFI for portable devices. Use those ethernet cables to put a couple WIFI access points in to distribute the WIFI load. It might be cost prohibitive to get etherent to the second (or third) story. But it would be worth getting a quote from a low voltage cable installation specialist.
For the guest house, you could use MOCA. You could also put an outdoor WIFI access point facing the guest house. That might be sufficient.

kanewolf

Titan
Moderator
25 devices on WIFI with a single home WIFI source will not be fun. Since it sounds like you have a basement, I would recommend using it to get ethernet cabling into as much of the house as possible. Every stationary device (TV, ROKU, desktop, etc) is much better with wired than wireless. Save your WIFI for portable devices. Use those ethernet cables to put a couple WIFI access points in to distribute the WIFI load. It might be cost prohibitive to get etherent to the second (or third) story. But it would be worth getting a quote from a low voltage cable installation specialist.
For the guest house, you could use MOCA. You could also put an outdoor WIFI access point facing the guest house. That might be sufficient.
 
Solution
May 15, 2018
2
0
10
Thanks! Quick question though, is there a way to check that the coax lines in the guest house run to the basement of the main? I don't think line testers would work because they only show continuity. Would attaching a TV antenna somewhere in the main and checking for signal on a TV in the guest house work? Sorry, I've never used cable TV so I have no idea how it works.
 
There are outdoor air links that you can use. ubiquiti sells some. an underground ethernet cable will likely be a lot less expensive.

ethernet isn't very expensive to DIY. If you're only just getting up WAP and not a lot of wall connections.
My outdoor line was only buried a few inches, which i know because a stump grinder pulled it up for me recently.

I highly doubt powerline will work. The guest house probably has a 50A or larger line running from the main breaker to it. powerline barely works over unused lines on the same breaker.