# Zigbee pairing issues: New devices fail to interview or drop immediately (Homey Pro 2026)

**URL:** <https://community.homey.app/t/zigbee-pairing-issues-new-devices-fail-to-interview-or-drop-immediately-homey-pro-2026/154625>\
**Category:** Devices\
**Created:** [May 7, 2026, 6:53pm UTC](https://community.homey.app/t/zigbee-pairing-issues-new-devices-fail-to-interview-or-drop-immediately-homey-pro-2026/154625 "2026-05-07T18:53:32Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Skalmenar](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/skalmenar/32/130236_2.png) [@Skalmenar](https://community.homey.app/u/Skalmenar)\
**Post date:** [May 7, 2026, 6:53pm UTC](https://community.homey.app/t/zigbee-pairing-issues-new-devices-fail-to-interview-or-drop-immediately-homey-pro-2026/154625/1 "2026-05-07T18:53:32Z")

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Hi everyone,

I’m struggling to add new Zigbee devices to my Homey Pro 2023. Despite having a seemingly healthy mesh, I cannot pair new routers or end devices.

**The Symptoms:**

1. **diferents Plugs:** When trying to pair (close to Homey or via a router), I get the error: _“Could not establish connection, something went wrong”_.

2. **Third Reality Humidity Sensors:** They actually pair, but they drop from the network after a few seconds. I can only see the first temperature reading before they become unresponsive.

**My Network State (see attached screenshot):**

- **Channel:** Zigbee is on Channel 15.

- **WiFi Interference:** I have already moved my WiFi to Channel 1 (20MHz) to avoid overlapping.

- **Nodes:** 12 nodes in total.

- **Routers:** I have several routers (Sonoff, Al001, etc.) with **0% TX Error** rates. The backbone seems very stable.

- **Attempted fixes:** \* PTP (Pull The Plug) for 15 minutes.

**The Problem:** It seems Homey refuses the “handshake” or the interview process. I haven’t reached the direct connection limit (only about 5 devices are direct, the rest are via routers).

Any ideas on why the coordinator is rejecting new interviews or why devices drop immediately after a successful pairing?

Thanks in advance!

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<div class="post-metadata">

**Author:** ![SunBeech](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/sunbeech/32/111391_2.png) [@SunBeech](https://community.homey.app/u/SunBeech)\
**Post date:** [May 7, 2026, 7:03pm UTC](https://community.homey.app/t/zigbee-pairing-issues-new-devices-fail-to-interview-or-drop-immediately-homey-pro-2026/154625/2 "2026-05-07T19:03:53Z")

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> [@Skalmenar](#):
>
> - **Channel:** Zigbee is on Channel 15.
> - **WiFi Interference:** I have already moved my WiFi to Channel 1 (20MHz) to avoid overlapping.

Not sure whether this contributes to your issue, but Zigbee channel 15 partly overlaps with WiFi channel 1 (in its sideband).

 ![IMG_6024](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/1/9/19426039fe743c7ba8518729fc4ac4690b47b998.jpeg)

Source: [ZigBee and Wi-Fi Coexistence](https://www.metageek.com/training/resources/zigbee-wifi-coexistence/)

A higher Zigbee channel (18 or above) would likely have less interference. I under channels 20 or 25 are the preferred ones in such cases, [for compatibility reasons](https://community.homey.app/t/buttons-not-responding-or-severe-lagging-newbie-going-out-of-my-mind/154420/6).