- Networks
- Smart speakers
Speaker not discoverable in the app
Marshall Speaker not discoverable in the app on speaker
Risk level
Low
Usually safe to check without specialist tools.
Urgency
Low
Quick answer
If the Marshall or Google Home app cannot find your speaker, on a Uxbridge Voice hold Play/Pause for 7 seconds to enter discoverable mode and join the same Wi-Fi; on a Stanmore III pair via Bluetooth first (slow red pulse) and accept the [LE] request.
Safety first
Stop and check this first
- A factory reset deletes all user settings and requires setting the speaker up again; remember to remove the speaker's name from your phone's Bluetooth list before pairing again.
Safe checks you can perform
- Hold Play/Pause for 7 seconds on Uxbridge Voice and check Wi-Fi
- Pair Bluetooth first and accept the [LE] request on Stanmore III
- Clear the phone Bluetooth cache and factory reset if needed
Leave these tasks to a qualified professional
- Do not attempt this professional task: Use the Marshall chat assistant under Contact Us
- Do not attempt this professional task: Connect with the Marshall support team via Contact Us
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Use the Marshall chat assistant under Contact Us
What they doIf the speaker remains undiscoverable in the app after holding Play/Pause for 7 seconds on a Uxbridge Voice or pairing via Bluetooth (slow red pulse) and accepting the [LE] request on a Stanmore III, open Contact Us on Marshall's support page to use the chat assistant.
They must show youthe app discovery failure seen, the speaker model (Uxbridge Voice or Stanmore III) and the Wi-Fi or Bluetooth [LE] steps already tested.
In writingthe chat inquiry reference, the recorded diagnosis and the next step quoted from Marshall support.
Connect with the Marshall support team via Contact Us
What they doWhen clearing the phone's Bluetooth cache, forgetting the speaker in the Bluetooth list, unplugging mains power for 15 seconds and performing a factory reset still do not let the app find the speaker, ask to connect with the Marshall support team through Contact Us.
They must show youthe steps already tried (Android or iPhone Bluetooth cache clear, phone restart and speaker factory reset) and the model details.
In writingthe support team case number, the troubleshooting steps logged and the next instruction from the Marshall support team.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Hold Play/Pause for 7 seconds on Uxbridge Voice and check Wi-Fi
- Who:
- you, next to the powered-on Uxbridge Voice speaker.
- How:
- push and hold the play/pause button for 7 seconds to set the speaker in discoverable mode, and verify that your phone is connected to the same 2.4 GHz or 5 GHz Wi-Fi network as the speaker.
- Result that matters:
- allowing the Marshall Voice app or Google Home app to discover the Uxbridge.
- If the speaker appears in the app:
- follow the in-app setup instructions.
- If it still does not show up or you are setting up a Stanmore III:
- check Bluetooth [LE] pairing and cache.
- Evidence to keep:
- the Wi-Fi network name on your phone and confirmation of the 7-second press.
Evidence: Uxbridge with Amazon Alexa - User Manual · Uxbridge with the Google Assistant - User Manual · Support for Uxbridge voice with Amazon Alexa - Troubleshooting : Speaker not discoverable in the app | Marshall.com
Pair Bluetooth first and accept the [LE] request on Stanmore III
- Who:
- you, with your phone and the Marshall Bluetooth app.
- How:
- press and hold the Bluetooth button until the LED changes to a slow red pulse, select the speaker in your phone's Bluetooth list, open the Marshall Bluetooth app, tap the + sign and accept the [LE] pairing request.
- Result that matters:
- linking the speaker to the Marshall Bluetooth app so you can check the 'About' section for firmware updates.
- If the app connects and shows the firmware in 'About':
- app setup is complete.
- If the app still fails to add the speaker:
- clear your phone's Bluetooth cache and reset the speaker.
- Evidence to keep:
- a screenshot of the [LE] pairing request or the 'About' section in the app.
Evidence: Support for Stanmore III - Troubleshooting : App related issues | Marshall.com
Clear the phone Bluetooth cache and factory reset if needed
- Who:
- you, in your Android or iPhone settings.
- How:
- on Android open Settings, Apps, tap ⋮ to show system apps, select Bluetooth, Storage and Clear cache; on iPhone open Settings, Bluetooth, tap the 'i' icon, select Forget this device, toggle Bluetooth off and on and restart the phone.
- Result that matters:
- removing stale Bluetooth entries before retrying or running a factory reset (7 seconds on Volume + and Treble - for Uxbridge).
- If the app discovers the speaker after clearing the cache:
- setup can finish normally.
- If discovery still fails after a 15-second unplug and a factory reset, reach out to Marshall customer support.
- Evidence to keep:
- confirmation that the device was removed from the Bluetooth list and the phone was restarted.
Evidence: Support for Uxbridge voice with Amazon Alexa - Troubleshooting : Speaker not responding | Marshall.com · Support for Stanmore III - Troubleshooting : App related issues | Marshall.com
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Networks
- Brand
- Marshall
- Product type
- Smart speakers
Known code variants
- Altavoz no detectable en la app Marshall
- El altavoz no se detecta en la aplicación
- El altavoz Uxbridge no está visible en la aplicación Marshall Voice
- La aplicación Google Home no encuentra el altavoz Uxbridge
- Marshall Bluetooth app setup issues
- Marshall speaker not found in app
- Speaker not discoverable in the app
- The Uxbridge cannot be discovered by the Google Home app
- The Uxbridge cannot be discovered by the Marshall Voice app
What it means
Marshall documents app discovery failures for both the Uxbridge Voice (with the Marshall Voice or Google Home app) and Bluetooth home speakers such as the Stanmore III. On the Uxbridge Voice, the two official causes are that the speaker is not in setup mode (entered by holding the play/pause button for 7 seconds) or that the mobile device is not on the same WPA 802.11b/g/n/ac 2.4 GHz or 5 GHz Wi-Fi network. On the Stanmore III, Marshall requires pairing the speaker in the phone's Bluetooth settings first (LED in a slow red pulse) and accepting the [LE] pairing prompt after tapping + in the Marshall Bluetooth app. This error alone never proves a part is faulty.
Warnings and stop conditions
- Lowsource verified
A factory reset deletes all user settings and requires setting the speaker up again; remember to remove the speaker's name from your phone's Bluetooth list before pairing again.
Evidence: Uxbridge with Amazon Alexa - User Manual · Support for Stanmore III - Troubleshooting : App related issues | Marshall.com
Symptoms and causes
Probable causes · in order
- Uxbridge Voice is not in discoverable setup modeCommon
Marshall explains that if the Uxbridge Voice cannot be discovered by the Marshall Voice app or Google Home app, the likely cause is that you need to hold the play/pause button for 7 seconds to enter discoverable mode.
Evidence: Uxbridge with Amazon Alexa - User Manual · Uxbridge with the Google Assistant - User Manual · Support for Uxbridge voice with Amazon Alexa - Troubleshooting : Speaker not discoverable in the app | Marshall.com
- Mobile device and speaker are not on the same Wi-Fi networkPossible
On the Uxbridge Voice, the app will not discover the speaker if your phone or tablet is connected to a different Wi-Fi network from the 2.4 GHz or 5 GHz home network used by the speaker.
Evidence: Uxbridge with Amazon Alexa - User Manual · Uxbridge with the Google Assistant - User Manual · Support for Uxbridge voice with Amazon Alexa - Troubleshooting : Speaker not discoverable in the app | Marshall.com
- Missing prior Bluetooth pairing or [LE] approval on Stanmore IIIPossible
For the Marshall Bluetooth app on Stanmore III, the source device must be Bluetooth-paired first (with the LED on a slow red pulse) and the Stanmore III [LE] pairing request must be accepted in the app.
Evidence: Support for Stanmore III - Troubleshooting : App related issues | Marshall.com
Virtual technician
Does Speaker not discoverable in the app still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
Uxbridge with Amazon Alexa - User Manual
Marshall · 2026 · official_doc
- 2
Uxbridge con Amazon Alexa - Manual del usuario
Marshall · 2026 · official_doc
- 3
Uxbridge with the Google Assistant - User Manual
Marshall · 2026 · official_doc
- 4
Uxbridge con el Asistente de Google - Manual del usuario
Marshall · 2026 · official_doc
- 5
Marshall · 2026 · official_doc
- 6
Marshall · 2026 · official_doc
- 7
Marshall · 2026 · official_doc
- 8
Marshall · 2026 · official_doc
- 9
Support for Stanmore III - Troubleshooting : App related issues | Marshall.com
Marshall · 2026 · official_doc
- 10
Marshall · 2026 · official_doc
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