The short answer
Check the microphone mute button first, since it is easy to knock and the speaker gives no verbal warning when muted. Then check the network, retrain or change the wake word if the room is noisy, and move the speaker away from walls and corners, which distort what its microphones hear.
A smart speaker that stops responding is rarely broken. It is either not hearing you, not understanding you, or unable to reach the service that processes what you said. Each has a distinct signature, and the light ring or indicator usually tells you which.
Read the indicator first
- Solid red or a muted microphone icon: the microphone is off. Press the mute button.
- Spinning or pulsing during a request: it heard you and is waiting on the network. That points at connectivity or a service outage.
- Nothing at all when you speak: it is not detecting the wake word.
- Orange or amber: usually a network connection problem on most brands.
- Lights up then gives no answer: it heard and could not process, which again is network or service side.
Cause 1: it cannot hear the wake word
Check the mute switch
The most common cause by a distance. Many speakers have a physical switch that is easy to knock when dusting or moving them.
Move it away from walls and corners
Reflections confuse the microphone array. Aim for 20cm or more from a wall and not in a corner.
Move it away from noise sources
A speaker beside a kitchen extractor, a television or a washing machine has a much harder job. Even a few feet helps.
Retrain the voice model
Both major assistants offer voice training or recognition setup. If several people use it, add each voice.
Change the wake word
If your room is noisy or the current word sounds like something you say often, switching it usually improves recognition noticeably.
Check the microphone openings
Dust and kitchen grease accumulate on the fabric or grille over years. Gentle vacuuming through a cloth helps.
Cause 2: the network
Smart speakers do their recognition in the cloud, so no network means no response beyond a local error message. Check:
- Signal strength at the speaker, which the app usually reports. Speakers often live in kitchens and bathrooms at the edge of coverage.
- A full DHCP pool, which prevents the speaker getting an address after a router restart. Enlarging the pool and reserving an address for the speaker fixes it permanently.
- Band steering, which some speakers handle poorly. Splitting the bands or forcing 2.4GHz is a valid test.
- Router firmware changes, which occasionally alter security settings the speaker relied on.
- A service outage, which is worth ruling out before touching anything. If your phone’s assistant also fails, the problem is not your speaker.
Ask the speaker something that does not need the internet, such as its volume or a local device command if it supports offline control. A speaker that responds to local commands but not to questions has a network or service problem rather than a microphone one.
Cause 3: the account or the app
An account signed out, a subscription lapsed, or a household member removed from the shared home all produce partial failures where some commands work and others do not. Open the app and check that the speaker is listed, online and assigned to the right room.
Voice match failures are worth checking too. If the assistant no longer recognises your voice, it may refuse personal results such as calendar and messages while still answering general questions. That is a very specific symptom with a very specific fix: redo voice training.
Cause 4: it hears you and does the wrong thing
- Device names that sound similar cause the wrong device to respond. Rename them to distinct, easy words rather than descriptive phrases.
- Multiple speakers in earshot compete to answer. Both major platforms handle this reasonably, and in an open-plan space it still misfires. Reducing microphone sensitivity on one of them helps.
- Room assignment errors mean a command such as turn on the lights affects the wrong room. Check the room each device is assigned to in the app.
- Routines with overlapping trigger phrases intercept commands. Review your routines for a phrase that shadows a normal command.
Cause 5: the speaker itself
Restart it by unplugging for 30 seconds. If that helps temporarily and the problem returns, a factory reset is the next step, and it means setting it up again from scratch.
Firmware updates install automatically and occasionally stall. Leaving the speaker plugged in and connected overnight gives it the opportunity to complete, which resolves some persistent oddities.
Hardware failure does happen, most often in kitchens and bathrooms where humidity and grease reach the microphones. If a speaker responds only when you are very close and shouting, after cleaning and repositioning, the microphone array is likely degraded.
A factory reset removes the speaker from your home, which also removes it from any routines and groups it belonged to. Note what it was part of before resetting, because rebuilding those associations is the time-consuming part.
A quick diagnostic sequence
Press mute on and off once. Say the wake word from two metres in a quiet room. If the light responds, the microphone is fine and the issue is network or service. If it does not, work through position, noise and voice training. Then check the app for the device being online, and restart the speaker. That sequence separates the causes in about three minutes.
Why does my speaker respond sometimes and not others?
Usually background noise or position. Microphone arrays work by comparing what several microphones hear, and reflections from a nearby wall or a running appliance defeat that comparison intermittently.
Does the speaker work without internet?
Barely. Some local device control works on certain platforms, and anything requiring recognition or an answer needs the cloud service.
Why does the wrong speaker answer me?
Both platforms try to pick the closest, and in open-plan spaces they get it wrong. Reducing the microphone sensitivity on the more distant speaker, where that setting exists, usually resolves it.
Should I change the wake word?
If your current one sounds like a name or word used often in your home, yes. Recognition improves measurably when the wake word is distinct from normal conversation.
Can I clean the microphones?
Gently. Vacuum through a thin cloth over the grille, and never spray liquid at the openings. Kitchen grease on the fabric is a real cause of gradual degradation.
The short version
Check mute. Check the indicator colour, which tells you whether it heard you. Move it away from walls, corners and noise. Retrain voice recognition and consider a different wake word. Confirm it is online in the app and that the service is not having an outage. Restart, then factory reset only if nothing else works.
