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The best way to check and ensure optimal supply from the ports is with a multimeter. The absolute first thing to check and take care of in dire situations like a restart loop is the cable situation on your device. If you qualify for a replacement device and you purchased your Google Home directly from the Google Store, you're in luck. Choose which device you're having the issue with from the Which device do you need help with? You can call but it may be just as easy to chat online. Here's how to contact support for the Google Home and Google Nest devices.

Once it’s done resetting, Google Assistant will say that it’s ready for setup, just like it said when you took it out of the box for the first time. From there, you can either set it back up using our guide, or box it up if you’re planning on giving it or selling it to someone else. You'll know your Google Home is being reset to factory settings as the Google Home Assistant will say so before starting the process. Since night mode changes the volume, you should take a look at this setting and see if it is on. And if it is, whether its customizations match your need or not. The issue can happen on any Google Home device such as Google Home Mini, Nest, etc.
Set a Different Alarm Volume
To check and change the volume of the Alarms and Timers, follow these steps in the Home app. Assuming that you do know how to set up a Bluetooth connection on the Nest/Home device, follow these steps on the Home app to reset the Bluetooth connection. Whether you’re having issues with it or just want to sell it, here’s how to factory reset the Google Home to erase all of its settings for a fresh start. At times, the paired Bluetooth device could also be responsible for unpredictable volume changes in Google Home.

You can find such applications either through a browser or by downloading a dedicated app from your respective app store. With that said, you can restart the Nest/Home devices in a couple of ways, most notably a power cycle test. You can also check out a few other troubleshooting tips in this article if your Google Home volume keeps changing. Annoyed at this inconvenience, I went online to figure out how to fix a Google Nest Home changing volume by itself. Turns out, quite a few Nest users have been facing this issue.
Check for Updates On Your Nest Hub
These guides will also help you factory reset a Google Home Hub or fix Google Nest Mini issues. All Google Nest devices update themselves automatically, and users cannot manually initiate firmware updates on the device. However, you can check the current version of your device firmware from the Google Home app to get a broader idea of the firmware situation on your Nest Hub.

For the sake of convenience, we are using the term Google Home across this post. But what could be the reason behind Google Home increasing the volume? I am not sure about that, but I know that it’s not responsible for changing your Google Home volume. Control your Google Assistant activity, privacy settings, information, and personal preferences. See your activity, delete it manually, or choose to delete it automatically.
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If you still cannot diminish the issue, switch the WiFi band. A traditional 2.4 GHz band has a lot of limitations, especially when the traffic in the network is high. If you experience automatic volume changes while using the Nest/Home as a Bluetooth speaker, refresh the connection as a possible remedy. The Nest/Home, apart from being one of the best AI-enabled Smart home devices available right now, is also a damn good wireless speaker. Follow these steps on the Home app to reboot the device. A power cycle test is also one of the recommended troubleshooting steps by Google once your device starts acting up.
Intermittent unpairing issues can arise from simple connectivity or lack of updates to a much more severe hardware issue. Better start the troubleshooting procedures as soon as the issue becomes a regular haunt. But even while using the Nest/Home as a wireless speaker, you may get hit with the weird volume change issue. First, connect both your devices(smart device and the Nest/Home) to the same network. A restart/reboot will remove any and all stagnant bugs and temporary errors on the device, especially if the device has been plugged in for a long time.
To check whether your device is up to date or not, follow these steps on the Google Home app. You can also restart the Nest Hub through the Google Home app on your smart device. If you have a tight enough connection and still the device shows signs of distress, better check the power supply port to which the power adapter is connected. Hard resetting a device will effectively cleanse the device of any stale bugs and stagnant files.
Another cool feature that might be the reason for the volume changing issue is the Google Assistant Routines. They are a single command that performs multiple tasks, including changing media volume. So check the Google Assistant Routines and see if any routine that you use is changing the Google Home volume. When you use Google Home as a Bluetooth speaker, the volume can be changed from the connected devices, and it will remain the same once you disconnect. Use the Home app to control on/off, volume, playback, inputs, and more for your connected streaming and media devices.
Once the traffic exceeds the threshold, the network becomes laggy with high latency and slower speeds. Unplug the router and leave it unplugged for a couple of minutes after which plug the device back into power. Unstable speeds invariably lead to increased latency and buffering issues.

Run speed tests, set up a guest network, and easily share your Wi-Fi password with family and friends. Use parental controls like Wi-Fi pause to manage online time for the kids. Automatically prioritize video conferencing and gaming traffic on all devices, or decide which devices to prioritize for all traffic types. The volume of Google Home smart speakers can be changed in multiple ways.
If your Google Nest Hub keeps restarting, check your cables for loose connections. If there are no signs of wear and tear, refresh your Google Nest Hub and check for updates. If none of the above works, factory reset your Nest Hub. If you have a Google Home, press and hold the microphone mute on the back of the speaker for about 15 seconds to reset. If successful, your device will confirm it's resetting. Black screens are a result of bugs or errors that may arise after a recent update or due to improper power supply.

For others, creating a speaker pair with two Minis -- and then unpairing them -- may have triggered the problem. Whatever the cause, there's apparently no software fix. On the newer Mini models, switch OFF the mic and then press and hold the Center button until the device turns OFF and back ON again.
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A probable remedy to such problems is to refresh the network. An unstable internet can cause a host of problems on your device, including abrupt volume changes. Tap on the Settings icon on the top, and then select the Audio option.
