Reddit reviews TP-Link N300 Long Range Outdoor WiFi Range Extender | Point to Point Wireless Bridge | 2.4GHz, 300Mbps, 9dBi, 5km+ | Passive PoE Powered w/ Free PoE Injector | TDMA | Pharos Control (CPE210)

Ideally, there would be a strong directional antenna at your parent's home, aimed at your window. These are not expensive. If their router has external antennas using a standard antenna mount, you can exchange one of them for a directional antenna like this one. Even through walls, it should improve the signal considerably, but you have to carefully aim it, since it'll only deliver a very narrow signal. The example I linked to is for 2.5 and 5GHz WiFi - if you only have a 2.5GHz router, you can get a cheaper model.

At your end, you may want to place a repeater with a high-gain antenna, at a window that looks at your parent's house, which would be the spot you'd aim at with the high gain antenna. Just pick a model with good reviews. You can also get a directional antenna for this device as well in order to further improve the signal, if necessary. Most repeaters have the same standard antenna mount as routers.

In any case, this will require a lot of fiddling, running back and forth (or getting one of your relatives on a phone and coordinating them to aim an antenna for you). Expect a good afternoon of tweaking until it works. I can not make any promises regarding bandwidth, since this is highly dependent on local conditions. The method listed above is the easiest option, just a few simple antennas and a repeater.

Alternatively, you could also get more specialized, stronger directional antennas, mounted outside on the walls of their house and where you are living, but that's a bigger effort. It's not that these are expensive though, even the cheapest model has a potential range measured in miles. Installing two of them wouldn't cost much more than getting a repeater and two directional antennas, but the results would be significantly better.

If you have line-of-sight to the new office, you could at least (in the short term) use point-to-point antennas as a holdover until a long term plan can be fleshed out. I have a pair of https://www.amazon.com/TP-Link-CPE210-300Mbps-dual-polarized-directional/dp/B00P4JKQGK at home that seem to do a decent job. Just set one up as an AP, and the other as a client.

Is this like a neighbors router (the 20Mbps one)

You could return the card. Get this:


https://www.amazon.com/dp/B00P4JKQGK/

When you’re having trouble connecting the best thing is to get a directional antenna.

Check out some outdoor routers. It will solve your problems. I got it $40 router for my Ring Doorbell 2.
TP-LINK CPE210 2.4GHz 300Mbps 9dBi High Power Outdoor CPE/Access Point, 2.4GHz 300Mbps, 802.11b/g/n, dual-polarized 9dBi directional antenna, Passive POE https://www.amazon.com/dp/B00P4JKQGK/ref=cm_sw_r_em_apa_i_jdWWCbH2KADVK

Can you plug in one of these down in the basement?
TP-Link Long Range Outdoor Wifi Transmitter - 2.4GHz, 300Mbps (CPE210) https://www.amazon.com/dp/B00P4JKQGK/ref=cm_sw_r_cp_apa_i_pheNDbW0ZWEW8

They can be configured to plug in via ethernet or wifi then create your own SSID. They do penetrate well too.

You could get a wireless ethernet adapter with integrated anteanna to guarantee the best signal. It has to be configured, much like a router does, to connect to the host's wireless.

ubnt.com or tp-link

Maybe something like this

The main thing is to get something that has a good antenna. That's going to help your weak signal.

Ach, I was wrong. I just found the one I was thinking of. Turns out it's 5km line of site here: https://www.amazon.com/TP-Link-CPE210-300Mbps-dual-polarized-directional/dp/B00P4JKQGK/ref=sr_1_fkmr0_1?s=electronics&ie=UTF8&qid=1522696170&sr=1-1-fkmr0&keywords=ethernet+bridge+directional+5km. Though I imagine directional antennas could boost that.

Take a look at these, go through the three models they offer and chose what frequency your WiFi can support.
https://www.amazon.com/TP-Link-CPE210-300Mbps-dual-polarized-directional/dp/B00P4JKQGK/ref=mp_s_a_1_3?keywords=long+range+wifi&qid=1563738927&s=gateway&sr=8-3

Not OP but I believe even just two cheap TP-Link CPE210 as you suggested should be easily able to reach 1km, given clear line of sight (including clear air in a cigar-shaped volume; that is, it widens slightly in the middle).

That is exactly the model I used, though I was using just one, as I only needed to bridge a couple hundred feet. So I could get away with using a regular short-range wireless adapter on the receiving end. It worked great.

The other two on that same amazon page are even higher power/more directional! 1 2

You might try two of these:

https://www.amazon.com/TP-Link-CPE210-300Mbps-dual-polarized-directional/dp/B00P4JKQGK/ref=zg_bs_1194486_11?_encoding=UTF8&psc=1&refRID=NYR87KHCA8CVA8SZBS9P

or

https://www.amazon.com/Ubiquiti-NanoStation-loco-M2-Wireless/dp/B00HXT8FFI/ref=sr_1_fkmr1_2?ie=UTF8&qid=1488817628&sr=8-2-fkmr1&keywords=ubiquiti+nanostation+300mbps

Perfect! I'd assume the 200 on 2.4ghz would have more penetrating power than the 500 @ 5ghz?

Edit - and just to check, this tplink one is right along side the EnGenius and half the price on Amazon. Any thoughts?

https://smile.amazon.com/dp/B00P4JKQGK/ref=psdc_1194486_t2_B006M1PKWY

You could try getting just one and hope that it can pick up the signal from your neighbor, but that's the equivalent of one person talking with a bullhorn at opposite ends of a football field.

What's your budget? You can get pair of TP-Links for about $80.

This might also work. I use a pair of TP-Link outdoor CPE's to get internet to our garage that is a good distance from our home. These things are highly configurable for different applications. https://www.amazon.com/dp/B00P4JKQGK/ref=cm_sw_r_cp_apa_vRSjzbWAWGGB4

woa, almost 400 bucks is really expensive. Why not try a dedicated router (without wifi) to make the mixing of the networks and simply connect it to an access point in the end?.

I installed one of these on a restaurant where they had two networks to mix and the config was not hard at all. In the end it provides wireless access via an access point.

Since the router pretty much lets you mix up to 4 networks its up to find a good access point/wireless router to link with it.

I realize this is a lot cheaper but might this be a suitable alternative?
https://www.amazon.com/TP-Link-CPE210-300Mbps-dual-polarized-directional/dp/B00P4JKQGK

its 35 feet, i do have a link going to another building using 2 of these. https://www.amazon.com/TP-Link-CPE210-300Mbps-dual-polarized-directional/dp/B00P4JKQGK/ref=sr_1_2?ie=UTF8&qid=1498542704&sr=8-2&keywords=TP+Link+cpe it sucks now they're $40 when i paid like $80 but anyway. but that link is over 300 feet away so its not really a way to run a cable to that building and there i agree a wireless link is fine. plus while i love spending 100's of dollars times 2 just to go 30 feet is just insane and out of the question for me maybe if i was going to replace the 300-foot link but even then that's a lot for me.

right now as a temp stop gap i have 2 of these just sitting out there baking in the sun, and we've been having to watch the rain and pull them in and toss them out as needed still, the bandwidth isn't enough to stream media let alone do the 4 or more camera's i wanna add to that building in the future.