How to Fix HomeKit Not Working with Sylvania Devices
Introduction
Before You Begin:
You must have HomeKit setup in the first place.
You should already have your Sylvania device connected to HomeKit.
1 Restart Smart Light
In most cases, restarting the smart light or plug is enough to bring it back online and working properly again.
It is critically important you don't dismiss or skip over this first step, even if it seems too simple to fix the problem.
- Turn off the power to your smart device. This may mean flipping the switch or unplugging the device, depending.
- Wait 30 seconds.
- Plug back in or turn back on your smart device.
- Wait 30 seconds for the device to re-connect to your hub.
- Try accessing your smart device from your app again.
2 Reset HomeKit System
Sometimes, your various accessories and devices connected to your HomeKit system can become badly out-of-sync to a point where multiple problems start happening. Carefully resetting your entire HomeKit system, focusing on the misbehaving accessories, can help deal with this problem and get everything back up and working.
- Turn off the power to any Accessories that are having problems.
Normally, you leave the power to these on, but we are turning them off as part of the troubleshooting process. We will turn them back on at the end.
- Turn off your HomeKit Hub.
This could be your iPad or iPhone you leave at home, or your Apple TV or HomePod speaker.
- Turn off your modem and/or router.
These are the boxes for your Internet service; all of your connected devices use your home network eventually, it may be having problems, and power cycling it can resolve these issues.
- Wait 30 seconds.
- Plug in or turn on your modem and router.
- Wait 60 seconds for your modem and router to come back online.
- Turn on your HomeKit Hub.
- Turn on any accessories or devices you had turned off.
- Wait 60 seconds to three minutes for all your devices to start up, and reconnect.
- Try using your HomeKit devices again.
3 Reset Check
Our next step is to factory reset the Sylvania Smart+ device to factory defaults, then re-setup the device.
? Are you ready to factory reset, then re-setup your bulb?
Before You Begin:
You must have HomeKit setup in the first place.
You should already have your Sylvania device connected to HomeKit.
In most cases, restarting the smart light or plug is enough to bring it back online and working properly again.
It is critically important you don't dismiss or skip over this first step, even if it seems too simple to fix the problem.
- Turn off the power to your smart device. This may mean flipping the switch or unplugging the device, depending.
- Wait 30 seconds.
- Plug back in or turn back on your smart device.
- Wait 30 seconds for the device to re-connect to your hub.
- Try accessing your smart device from your app again.
Sometimes, your various accessories and devices connected to your HomeKit system can become badly out-of-sync to a point where multiple problems start happening. Carefully resetting your entire HomeKit system, focusing on the misbehaving accessories, can help deal with this problem and get everything back up and working.
- Turn off the power to any Accessories that are having problems.
Normally, you leave the power to these on, but we are turning them off as part of the troubleshooting process. We will turn them back on at the end.
- Turn off your HomeKit Hub.
This could be your iPad or iPhone you leave at home, or your Apple TV or HomePod speaker.
- Turn off your modem and/or router.
These are the boxes for your Internet service; all of your connected devices use your home network eventually, it may be having problems, and power cycling it can resolve these issues.
- Wait 30 seconds.
- Plug in or turn on your modem and router.
- Wait 60 seconds for your modem and router to come back online.
- Turn on your HomeKit Hub.
- Turn on any accessories or devices you had turned off.
- Wait 60 seconds to three minutes for all your devices to start up, and reconnect.
- Try using your HomeKit devices again.
Our next step is to factory reset the Sylvania Smart+ device to factory defaults, then re-setup the device.
- Disconnect the power, reconnect the power, wait five seconds, and repeat this process 5 times.
- Your light will flash to indicate it is reset.
Multi-color Light 
The Multicolored light will flash blue, red, green, then stay on white to indicate it is reset.White Light & Smart Plug 
The white light will go dim, then bright a few times before staying on bright to indicate it is reset.
- On your iPad or iPhone, open the Home app and select Add Accessory.
- Scan the setup code for the product.
There are a few different types of setup code currently available for Apple HomeKit enabled products.
Simple Setup Code You'll find this either on the box your Accessory came in, or on the back or side of the device itself.
Advanced Setup Code 
Some devices require further information, and that's provided through a more complex-looking, machine readable code, called a QR code. This provides the extra setup information your iOS device needs, but keeps the process just as simple as pointing the camera at it.Proximity Scanning 
Some devices have a small radio-activated chip in them, instead. This provides a wealth of handshake and setup information with even less work for you. Simply hold your phone or tablet next to the device, and it will be detected and setup instantly. - You'll be asked to enter the details about the device, such as what room the device is in, the name you want to give it. Enter this information so it's easier to find in the future.
Your device should be paired and working properly once again!