How to let a Ethernet hub access a wifi network ?

Use a standard off the shelf wireless router that has multiple ethernet ports, and run it in 'bridge mode' / 'repeater mode' rather than as an 'access point'.
I have a wireless router / access point in my family room, and in the garage is a wireless router used in bridge/repeater mode rather than access point mode.
I then have a 16port POE switch plugged into the garage wireless repeater device to aggregate multiple wired ethernet devices onto the wireless network.
If I only needed four or less wired ethernet ports (or did not need the POE capability) I wouldn't need the external switch. But I need POE and have 10 wired ethernet devices, so I do.

edited:

Or you can use something called a 'range extender' like this: RE450 | AC1750 Wi-Fi Range Extender | TP-Link
Basically it is a WIFI adapter with an ethernet port that you can connect to your external ethernet switch/hub and provide wireless access to your remote wired devices.

Not exactly clear what you are asking but you can connect a standard router to primary internet router lan port to lan port.

You have to change settings on second router to have a static ip address on same subnet as promary router e.g. primary router has ip 192.168.0.1, then second would have sat 192.168.0.2.

You also disable dhcp on second router.

You can even use same wifi ssid and password on each router if you wish but if you do that select a separate wifi channel for each (1, 6 or 11 on 2.4 GHZ). Not sure what to select on 5 GHZ.

My area outside with the 2 Windows 10 computers is too far from the house.

An effort to provide a solution would be much easier if the "too far" distance is actually known.

The usual CAT 5 Unshielded Ethernet cable length limit is 100 Meters, a little over 300 feet. CAT 5e and CAT 6 lengths vary from that.

As for hardware, a Self-powered Switch is usually better than a Hub when adding additional ports.

My network consists of several computers, printers and a NAS connected to a Router through the 4 ports on it plus an 8-port Switch connected to the Router. The Router provides Wireless/Wi-Fi support of additional computers having the Wireless adapter for connecting. That's a complete network. The Router is then connected to a PoE Modem giving a connection to a dish on the building providing Wireless DSL to the ISPs equipment about a couple miles away on a hill. The network is fully functional without being connected to the Internet until needed.

Some Routers have the Modem function included in them, due to the electrical power needed for the dish I can't use those, need the PoE Modem.

cereberus said:

(1, 6 or 11 on 2.4 GHZ) Not sure what to select on 5 GHZ.

There are 24 channels altogether but only 8 should be used, 36, 40, 44, 48, 149, 153, 157, and 161. If you have a week signal The highest output power is on channel's 36, 40, 44, 48 and select 20Mhz channel width.

52, 56, 60, 64, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, and 144 are DFS channels and should be avoided no matter what country you live in.

DFS channels and why to avoid them (even though you say you cannot) – WIFI_NC

thomehm said:

I guess I have not described my situation clearly enough. Because all of the answers are way off base with my situation. Let me try again.

1) Currently I have two windows 10 computers in the backyard. I have a wireless network inside my house. I want to connect one computer in the backyard to the other computer in the backyard and use remote desktop from one to the other. I also want to have each computer in the backyard to have access to the internet.
2) I have tried connecting each of the computers in the backyard to the house wifi network. This setup has shown itself to be unreliable. The remote desktop connection between the two computers in the backyard is the most unreliable connection. It is more unreliable than the connection of each computer to the internet. I think this is probably because the connection needs to make two trips, from computer A to the house wireless network and then from the wireless network back out to computer B.
3) I cannot run an ethernet cable from the house out to the two computers in the yard because of some obstacles.
4) Currently, I have the remote desktop connection working by using an Ethernet cable between them. The remote desktop connection is stable, but I lose the internet connection for both computers. That has turned out to be a bigger problem than I thought it would be.
5) I was thinking that maybe I could attach computers outside, by Ethernet cable, to a hub, and then connect the hub to the house wifi maybe that could work. But I don't know how I could connect the hub to the house wifi network.
6) I am looking for suggestions on how to connect the hub outside to the house wifi. Can this be done?

Yes, repeating what I said back in post #2.

You can use something called a 'range extender' like this: RE450 | AC1750 Wi-Fi Range Extender | TP-Link
Basically it is a WIFI adapter with an ethernet port that you can connect to your external ethernet switch/hub and provide wireless access to/from your remote wired devices.
I do this exactly in my garage to connect multiple wired ethernet devices to my home wireless network. I hang a 16 port POE ethernet switch off the RE450 device.
If you don't like TPlink pretty much any wireless gear provider makes similar devices. Google for 'wireless range extender'.