Fixes for the most common Yealink MTouch Plus-EXT problems, from the quickest checks to when to contact Yealink. Start at the top: most issues are a setting, a cable or firmware.

What the MTouch Plus-EXT has
Check the problem against what this model actually has:
- Display: 11.6-inch 1080p IPS, narrow bezel
- Expansion: Up to 4 MTouch Plus-EXT with 1 MTouch Plus
- Power: YL PoE30 (IEEE 802.3af) included
- Ports: PoE power port, USB-C debug port
- Network: Same network as MTouch Plus; no distance limit
- In the box: MTouch Plus-EXT, 7.5 m network cable, 3 m network cable, YL PoE30 injector, mounting bracket and double-coating tape
Quick checks
- Restart it: unplug the network cable for 30 seconds, then reconnect.
- Reconnect the cables, using the ones that came in the box.
- Update the firmware. How
Controller says 'Not paired' or can't find the room system
- Check the MTouch Plus-EXT and the MTouch Plus are on the same network subnet.
- Re-run pairing from the controller's settings; keep it within about 10 m during Bluetooth-assisted pairing.
- Update both devices to current firmware; pairing needs matching versions.
- Restart both devices.
Touchscreen unresponsive
- Clean the screen with a dry microfiber cloth.
- Restart it by unplugging the network cable for 30 seconds.
- Update the firmware.
Keeps disconnecting or drops out
- Use wired Ethernet rather than Wi-Fi, and check the switch port for errors.
- Update firmware.
Won't turn on
- Check the switch port supplies PoE (802.3af) and has enough power budget left.
- Try a known-good cable and a PoE injector to rule out the switch.
- If it starts and then restarts, the port may not supply enough power.
When to contact Yealink
If none of this works, the device may need warranty service (Yealink warranty: 24 months for Teams Room Systems, Collaboration Bars, BYOD kits, USB room cameras, VC room systems, Zoom Room kits and Meeting Boards; 24 months for personal speakerphones/headsets/USB cameras; 12 months for SIP and Teams desk/conference phones). Open a case on Yealink support. Bought from us? Contact us and we'll help with the claim.
More MTouch Plus-EXT guides
- MTouch Plus-EXT buyer's guide: specs and price
- MTouch Plus-EXT: setup guide
- MTouch Plus-EXT: mounting and placement
- MTouch Plus-EXT: Teams, Zoom and Google Meet
- MTouch Plus-EXT: price and total room cost
- MTouch Plus-EXT: full specs
- MTouch Plus-EXT: alternatives compared
- All Yealink touch controllers compared
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