Nighthawk X6S interfering with BT Business Wifi Hub

What Firmware version is currently loaded?
What is the Mfr and model# of the Internet Service Providers modem/ONT the NG router is connected too?
Be sure your using a good quality LAN cable between the modem and router. CAT6 is recommended.

 

If your ISP Modem already has a built in router and wifi. This would be a double NAT (two router) condition which isn't recommended. This would be a double NAT condition which isn't recommended. https://kb.netgear.com/30186/What-is-Double-NAT
https://kb.netgear.com/30187/How-to-fix-issues-with-Double-NAT
Couple of options,
1. Configure the modem for transparent bridge or modem only mode. Then use the NG router in router mode. You'll need to contact the ISP for help and information in regards to the modem being bridged correctly.
2. If you can't bridge the modem, disable ALL wifi radios on the modem, configure the modems DMZ/ExposedHost or IP Pass-Through for the IP address the NG router gets from the modem. https://kb.netgear.com/25891/DMZ-on-NETGEAR-routers
https://kb.netgear.com/24086/How-do-I-set-up-a-default-DMZ-server-on-my-Nighthawk-router
3. Or disable all wifi radios on the modem and connect the NG router to the modem, LAN to LAN configure AP mode on the NG router.

 

Try option #2 first...

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suej102 wrote:

Can anyone help me - I have a Nighthawk X6S but it is interfering with the BT Business Hub Wifi for other machines in different parts of the house.

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BT loves to dump modem/routers on customers. (An OpenReach technician once told me that Internet service provides are under orders not to supply modem-only boxes.) And those modem/routers don't have a "modem only" mode, which can complicate matters.

 

This raises issues that people have to deal with when they want to add their own router.

 

Which of the various BT Business Hubs do you have? If it is one of those modem/routers, your Nighthawk X6S, which could be one of several models, could have problems. You have piled router on router.

 

Two routers on your network can cause headaches. For example, you can end up with local address problems. Among other things, the other router can misdirect addresses that the Netgear router usually handles, such as routerlogin.net or the usual IP address for a router, 192.168.1.1.

This explains some of the other drawbacks.

What is Double NAT? | Answer | NETGEAR Support

Unless you have specific reasons for using two routers – to create two separate networks for example – it is often easier to use just one router and then to set up the second router as a wifi access point. Netgear advises this, as does just about every site you will visit.

But that has its own drawbacks:

Disabled Features on the Router when set to AP Mode | Answer | NETGEAR Support

 

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We don't have this problem when it is turned off - although I can't use the home wifi without it as I am out of range without the booster.

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When you say that the Netgear router is "interfering", what does that mean? What symptoms do you see?

 

And what is this "booster"? Netgear does make a Nighthawk X6S WiFi extender, the EX8000. But most X6S stuff is routers.

 

If you just want to spread the WiFi, then putting a router into wireless access point (AP) mode could stop them from falling over, or interfering with, each other because of NAT problems.

 

If it is more an issue of wireless signals, then you may be able to tweak the channels that the modem/router and booster use.