Accessory not responding in Apple Home: how to fix it

“No Response” under an accessory’s tile means Apple Home cannot reach it. That rarely means the accessory is broken. Far more often, something between your iPhone and the accessory has stopped passing messages: the home hub, a bridge, the Wi-Fi, or the Thread network.

The fastest way to fix it is to work out which of those it is first.

Step one: how many accessories are affected?

• Everything says No Response. Look at the home hub or your network.
• Everything from one brand. Look at that brand’s bridge or hub.
• Everything on Thread (many sensors, buttons and newer Matter devices). Look at your Thread border routers.
• Just one accessory. Look at the accessory itself: power, range, network settings.
• Fine at home, No Response when you are out. That is the home hub on its own.

When everything stops responding

Your home hub (a HomePod or Apple TV) relays commands to your accessories, runs your automations, and handles remote access. When it falls over, the whole home goes with it.

1. In the Home app, tap the More button, then Home Settings, then Home Hubs & Bridges. Check that a hub shows as Connected.
2. Restart the hub. For an Apple TV, go to Settings, then System, then Restart. For a HomePod, unplug it for ten seconds.
3. Restart your router, then give everything a few minutes to reconnect.
4. Make sure the hub is signed into the same Apple Account as the home owner and is running current software.

If you have several hubs, Home picks one to be active and keeps the others on standby. A hub that keeps dropping off Wi-Fi can bring the whole home down while it is the active one. If you have a spare, unplugging the unreliable one is a quick test.

When everything from one brand stops

Some accessories, such as Philips Hue lights or many Aqara sensors, don’t talk to Apple Home directly. They go through the maker’s bridge. If the bridge goes offline, every accessory behind it says No Response at once.

Restart the bridge, check its network cable or Wi-Fi, and open the maker’s app to see whether the accessories respond there. If they don’t work in the maker’s app either, the fault is on that side, not Apple’s.

When Thread accessories stop

Thread accessories form their own low-power mesh network, which links to your home network through a Thread border router. A HomePod mini, a second-generation HomePod, or an Apple TV 4K with Ethernet can all act as one.

• Restart your border routers, one at a time.
• If you have only one, add a second if you can. A single border router is a single point of failure for every Thread device in the house.
• Battery-powered Thread sensors don’t pass messages on for other devices. They rely on mains-powered ones (plugs, bulbs, HomePods) being in range. Moving or removing a plug can quietly cut off a sensor two rooms away.
• Some third-party border routers create their own separate Thread network. Accessories can end up split between networks that don’t reach each other. Updating everything to current firmware usually merges them.

When just one accessory stops

• Power. Check the batteries, the plug socket, and whether someone has turned off a smart bulb at the wall. A bulb with no power reads as No Response.
• Range. Bluetooth accessories need to be fairly close to a hub. Wi-Fi accessories at the edge of coverage drop in and out.
• The router changed. Wi-Fi accessories remember the network name and password they were set up with. A new router, a renamed network or a changed password leaves them stranded. The simplest fix is to give the new network the old name and password.
• 2.4GHz. Most Wi-Fi accessories only use 2.4GHz. A router update that turns on band steering, or switches the 2.4GHz band off, can cut them off.
• Firmware. Open the maker’s app and install any update. Old firmware is a common cause of accessories that drop off after an iOS update.

Remove and re-add: the last resort

If nothing else works, remove the accessory from Home, factory reset it, and add it again. This fixes a corrupted pairing, but it costs you something:

• You need the setup code again. Home won’t show it to you, so it has to come from the sticker, the box, or somewhere you saved it. See why Home never shows the code.
• Scenes and automations that used the accessory are lost and have to be rebuilt by hand.

The reset won’t change the code. You re-pair with the same number as before.

If the accessory won’t add again, our guide to the “Unable to Add Accessory” error picks up from there.