Fixing the HomeBridge No Accessories Responding problem
If you’re running HomeBridge on a Raspberry Pi like your’s truly and is facing the HomeBridge No Accessories Responding problem, well here are perhaps some steps that might help you fix the issue. It’s an extract from my full blog post on Getting the TP-Link HS110 Smart Plug to work with Apple Home & Siri. I decided to extract it out so that I can share it with anyone that’s facing this same problem. It took me a while to figure out what might be the cause and the following are the main couple of reasons why it wasn’t consistent for me. Hopefully, it would also help fix your issues with HomeBridge.
Getting rid of the HomeBridge No Accessories Responding problem
1. Ensure Multicast is configured to work optimally on your router
You will also need to make sure the router does not block and disable multicast within your network. Otherwise, you will often see the “No accessories responding” status on iOS Home app. The necessary configurations are a little tricky and it depends very much on the router you use. For my Asus RT-AC87U, I find that disabling IPv6 support and configuring the following settings at the IPTV settings under the LAN settings works for me.

These settings allowed multicast to properly work in the network
Your mileage may vary depending on the router you are using. However, I’m certain that there is a similar set of configurations that are available on your router.
2. Disable Wi-Fi power saving mode on the Raspberry Pi
Make sure the Wi-Fi device power saving mode on the Raspberry Pi is disabled. I used the steps described here to disable it. Full credit to Huygens who posted this on Stack Exchange where I just follow to the letter. Essentially you can check if Power Saving mode is on with the following command: –
$ iw wlan0 get power_save
Power save: on
If it’s on, then edit the/etc/network/interfaces
file and with the post-up iw wlan0 set power_save off
on the wlan interface.
iface wlan0 inet dhcp
wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
post-up iw wlan0 set power_save off
That’s it. With the two, your HomeBridge setup should be more stable than before.

TP-Link HS110 Smart Plug discovered via HomeBridge