HomeKit now lets you manually set what device is your Home Hub in iOS 18

FINALLY!!! HomeKit always wants to use the oldest AppleTV of mine, without Thread no less, when I have a perfectly good HomePod mini 4ft away from my wifi router and a 2nd gen AppleTV 4K the next room over lol.

I thought I had read the issue of HomeKit devices "being on a different wifi network" (ie: I have both 2.4Ghz and 5Ghz networks from one router) was going to be addressed in this update. That would be so nice! I purposely removed and re-installed every AppleTV and HomePod last year with my iPhone on the 2.4Ghz network but it seems, due to all these devices being logged into my iCloud and sharing wifi access point passwords, I always have one or two devices that insist on connecting to my 5Ghz network. This results in errors in the Home app showing a mis-matched wifi network.

I’d like to see Apple build a dedicated Home hub device that is also the main wireless access point in a mesh WiFi network. I wouldn’t really care if Apple built their own satellite access points or partnered with someone else. But ideally, all future HomePods large and small would also function as satellite devices in the mesh. Amazon is kind of doing this already but Apple could do it better for their ecosystem and incorporate full Matter and Thread support. If they put a Thunderbolt or USB-C with 10 GB port on it, it could also serve as a new Time Capsule with a storage device plugged into it. 

Can’t wait for this. It’s one of the most annoying elements of Apple Home… having to power down all home hub devices and the plug them back in, and in the order you want. And then it would inevitably default back to my worst performing device trying to serve as hub. Total waste of time. Happy for this change. 

kdupuis77 said:

FINALLY!!! HomeKit always wants to use the oldest AppleTV of mine, without Thread no less, when I have a perfectly good HomePod mini 4ft away from my wifi router and a 2nd gen AppleTV 4K the next room over lol.

I thought I had read the issue of HomeKit devices "being on a different wifi network" (ie: I have both 2.4Ghz and 5Ghz networks from one router) was going to be addressed in this update. That would be so nice! I purposely removed and re-installed every AppleTV and HomePod last year with my iPhone on the 2.4Ghz network but it seems, due to all these devices being logged into my iCloud and sharing wifi access point passwords, I always have one or two devices that insist on connecting to my 5Ghz network. This results in errors in the Home app showing a mis-matched wifi network.

Having separate networks for 2.4 and 5GHz is a bad idea. Name them the same, and let the devices decide which is best to connect to.

elijahg said:

kdupuis77 said:

FINALLY!!! HomeKit always wants to use the oldest AppleTV of mine, without Thread no less, when I have a perfectly good HomePod mini 4ft away from my wifi router and a 2nd gen AppleTV 4K the next room over lol.

I thought I had read the issue of HomeKit devices "being on a different wifi network" (ie: I have both 2.4Ghz and 5Ghz networks from one router) was going to be addressed in this update. That would be so nice! I purposely removed and re-installed every AppleTV and HomePod last year with my iPhone on the 2.4Ghz network but it seems, due to all these devices being logged into my iCloud and sharing wifi access point passwords, I always have one or two devices that insist on connecting to my 5Ghz network. This results in errors in the Home app showing a mis-matched wifi network.

Having separate networks for 2.4 and 5GHz is a bad idea. Name them the same, and let the devices decide which is best to connect to.

First to Kdupuis77, 2.4 Ghz and 5 Ghz are not 2 different networks, these are radio frequency channels.  The issue has nothing to do with mismatched wifi networks, instead it has a lot to do with the devices radio capabilities and your WiFi routers saturation.  It takes more bandwidth and power for a device with obstructions between it and the Wifi router than it does for one that is 20’ away with no obstructions. This is how a closer Homekit hub can end up as the active hub.

2.4Ghz offers a longer range of connectivity (150’ indoors up to 300’ outside) than 5Ghz (100’ indoors 200’ outdoors) so devices can be further away from the router and still connect.  5Ghz offers more bandwidth but at the cost of having a shorter distance.

When routers use the same SSID for both channels it is to allow devices that can do automatic channel switching utilize both channels.  This can be helpful for some devices.  On the other hand, there are a ton of devices that not only do not work on 5Ghz, they will not connect to WiFi at all if channel switching is enabled on the router.  You can in some cases trick them into joining the first time by temporarily turning off the 5GHz.

It is not as Elijahg has suggested a “bad idea” to have separate SSID’s assigned to each channel. The absolute only bad thing that could come from it is that devices that can use both might loose connectivity if they were to move outside of the 5Ghz range, which depending on the device’s radio power could be anywhere from 100’ to 200’.

Ultimately it comes down to you and your needs.  If all your devices can switch its not a bad idea to have it enabled.  But if your household is like mine with a kid that’s a hardcore gamer and we stream 100% of our TV, I prefer the 5GHz channel be reserved for devices that support those things while all of my IoT devices are restricted to the 2.4 Ghz channel if they support it – I do have one camera that only supports 5Ghz.