My Google Home app suddenly stopped working correctly and I can’t control some of my connected devices anymore. I’ve tried reinstalling the app and restarting my phone, but nothing changed. Can someone explain what might be causing this and suggest specific steps to fix the Google Home app issues?
Had this happen to me last month. Reinstalling the app and rebooting the phone did nothing too. What fixed it was going step by step through the “weak links” between Google Home, devices, and accounts.
Try this order:
-
Check if it is account related
• Make sure you are logged into the same Google account in:
– Google Home
– Google Assistant
– Google Play Services
• In Home app, top right, tap your profile. Confirm it matches the one you used when you set up the devices.
If the wrong account is active, switch to the correct one and see if the devices reappear. -
Check if the devices work outside Google Home
For a smart plug, bulb, thermostat, etc:
• Open the manufacturer app (Philips Hue, TP-Link, SmartThings, etc).
• Try turning the device on and off there.
• If it fails there too, the issue is with the device or its hub, not Google Home.
If it works in the vendor app but not in Google Home, the link between Google and the service is broken. -
Relink the service in Google Home
This is what fixed half my stuff.
• Open Home app
• Top right: your profile icon
• Tap “Assistant settings” or search inside Home for “Works with Google”
• Under “Linked services” or “Works with Google”, find the brand that controls the broken devices
• Unlink it
• Wait 30–60 seconds
• Link it again and sign in fresh
After relinking, wait a minute and refresh the Home app. Devices usually repopulate. -
Reset Google Play Services and Google Home app data
On Android:
• Settings → Apps → Google Home → Storage → Clear cache
• If nothing changes, repeat and also “Clear data” for Google Home
• Do the same for “Google Play services” but only clear cache, not data at first
Then reopen Home and let it resync. You might need to re-accept a few prompts. -
Check your network and router
• All Google Home devices and your phone must be on the same LAN and same band in some setups
• Avoid guest networks for smart devices
Steps:
– Reboot router and modem
– Make sure SSID is visible
– If you split 2.4 GHz and 5 GHz, keep smart devices on 2.4 and your phone on either, some routers isolate traffic between bands, so test by connecting phone to 2.4 GHz too
Also check if your VPN is on. Turn VPN off, then open Google Home again. -
Check for service outages
Twice, my issues were Google’s fault.
• Check “Google Home status” or “Google Assistant status” on Downdetector or Google’s status page
• If you see a big spike at the time your problems started, you are likely hitting a platform issue.
In that case nothing on your side fixes it until they resolve it. -
Check each device type
Sometimes only specific integrations break after updates. For example:
• Cast speakers work
• Philips Hue or Nest linking fails
See if:
• Voice commands work but not manual control in the app
• Or the reverse
Voice working but app failing usually points to UI or cache issues. App and voice both failing usually points to integration or account problems. -
Log out and back in from Google on the phone
On Android:
• Settings → Accounts → Google → remove the affected account
• Reboot
• Add the account again, then open Home
This fixed a weird token issue for me where some devices refused to respond but others worked fine. -
If all else fails, try one device reset as a test
Pick one affected device, not all of them, so you do not nuke your house config.
• Factory reset that one device
• Add it back to Google Home
If the new device works while older ones still fail, the issue is on each device’s side or in the old link. If even the new one fails, the problem is higher level, like your Google account or region settings.
If you reply with:
• Phone type and OS version
• Brands of the devices that no longer respond
• Whether they still work in their original apps
People here can narrow it down more. This stuff tends to be either a broken link to a vendor service or an account mismatch, app reinstall alone rarely fixes those.
Couple of extra angles to check that @mikeappsreviewer didn’t really dig into:
-
Check home structure & permissions
Google randomly decides you “don’t live here anymore” sometimes.- In the Home app: tap your profile → “Home app settings” → “Homes.”
- Make sure you didn’t:
- Accidentally create a new empty Home
- Get removed from the original Home
If you see multiple Homes, switch between them and see where the devices actually live.
Also:
- Tap your profile → “Home members”
- Confirm you still have “Home control” access and not just “view” stuff. If someone else originally set everything up, they might have changed your role or removed you.
-
App language vs Assistant language
Sounds dumb, but mismatched languages/regions can partially break control.- Profile icon → Assistant settings → Languages
- Make sure it matches your device language and country.
If you recently traveled or used a VPN to a different country, Google sometimes silently flips or messes with available integrations.
-
IPv6 & router security weirdness
Reboots help sometimes, but the settings are the killer. If devices show up but won’t respond:- In your router:
- Temporarily disable IPv6 and test
- Turn off “AP isolation” / “Client isolation” / “Wireless isolation”
- Disable any “IoT isolation” / “HomeShield” / “Security control” modes, then test
I’ve seen cases where everything looks online, but multicast traffic is blocked so Google Home can’t actually talk to the devices.
- In your router:
-
Time & region desync
Cloud-based stuff is picky about time.- On your phone: automatic date & time ON, automatic time zone ON.
- On your router: check NTP/time settings if it has them.
When tokens and certs are time-based, a wrong clock makes Google think your access is expired.
-
Check if ONLY remote control is broken
Try:- Turn Wi‑Fi off on your phone → use mobile data → open Home
- If it only works on Wi‑Fi or only on mobile data, your ISP or router is blocking something (CGNAT, DNS, or some “parental control” feature).
Try changing DNS on your router to 8.8.8.8 / 1.1.1.1 and test.
-
Corrupted device groups, rooms, or routines
Sometimes a single broken group kills control for everything inside it.- In Home, pick one failing device and:
- Remove it from its room
- Remove it from any speaker groups / routines
- Control it directly as a standalone device
If it suddenly behaves, re-create the room or the group from scratch.
Same idea for routines: if routines fail to control things, delete one broken routine and re-create it instead of nuking everything.
- In Home, pick one failing device and:
-
Hidden “Works with Google” migration issues
Some brands got forced migration from “Works with Google” to “Matter” or their new cloud. If your devices are older:- Check in the vendor app for banners like “Migrate your account” or “Link to new platform”
- Do any required migration there first, then go back to Home and refresh.
Sometimes the old integration still shows as “linked” in Google, but the vendor stopped honoring that connection.
-
Look for a pattern
Since reinstalling the app did nothing, this is almost certainly account, cloud, or network level. Check which category matches:- Only third‑party stuff broken, Google/Nest devices ok → vendor link / migration issue
- Only Google devices broken, other brands ok → Google account / Home structure / region issue
- Everything shows “offline” but vendor apps are fine → network isolation, router, VPN, or DNS
If you reply with:
- Phone model / iOS or Android version
- Whether any devices still respond at all
- If controlling by voice via Assistant works even when the Home app doesn’t
you can usually narrow this down in 1–2 steps instead of just re-installing over and over.