Why Do My Hue Lights Say Unreachable

Hue app says all my lights are unreachable but they work.
Why do my hue lights say unreachable. I am having the issue where my hue is connected all lights blue and the app being used to control the hue is the philips hue app for ios 13 5 1. It is just a matter of pairing the light to the dimmer switch so i have 3 on one dimmer switch and 3 on the other. However as philips hue bulbs use the zigbee wireless protocol you can get some issues with it including the hue lights unreachable error with the bulbs not displaying properly in the app. Restart philips hue app and add the hue bridge again.
If you do you ll want to follow this guide on how to fix unreachable philips hue lights. Hue app says all my lights are unreachable but they work. Some may work great some may produce a little buzzing and some will make the hue lights flicker to the point of being unusable. Says all hue lights are unreachable.
Ensure that your mobile device or tablet is connected to the same network as your light panels try toggling your wifi on your phone or tablet off waiting 10 seconds and then turning it back on again. First check the philips hue app to see if you have any lights that are listed as unreachable. January 5th 2019 reply. Issue 2 philips hue lights unreachable.
Ensure that the light panels are receiving power using the buttons to toggle power or change a scene. Philips says that if you do use hue lights with a dimmer be sure to keep the dimmer on 100 at all times. When you turn on one of the philips hue bulb without using the philips hue app or your amazon echo there is a high chance that will cause connectivity issues. And my siri has been glitchy.
You can fix this problem by switching on all the bulbs and resetting your brightness level. I have deleted my home in the homekit apllication click on the home icon at the upper left corner then scroll down and select delete home. On the box it says up to 10 bulbs but that is only if the hue bridge is not used. Lights must be turned on.
Philips confirmed this was true. If the app says that there are some lights unreachable it means that they are turned off. Exactly like the title says. Sometimes some of your lights will look unreachable if you turn them off without using the app.
All my lights are ok now. All my lights became unreachable. The app on the phone shows complete connectivity and says that i am controlling the lights. Lutron says that its dimmer switches work with philips br30 hue bulb but your mileage might vary.