Hue Lights Unreachable? Here’s the Fix
A common issue with Hue lights is that they are unreachable. You have added them but when it comes to turn them on and off the app says it cannot connect to that light bulb.
How to fix the Philips Hue lights unreachable error
This is a common issue and can be very frustrating, however there are a few reason this can happen, once you know which reason it could be then you can easily fix it from there.
Why are my Hue Lights Unreachable?
There are a few reasons this could be.
- The Bulbs are not turned on at the mains
- Too far away from your bridge
- Too far away from other Hue bulbs
- Wifi Interference
These are common issues as to why your Hue bulbs are not reachable, it could be as simple as they are not turned on so have no power going to them, or that they are just too far away.
How to Fix
If your lights are unreachable then here are the 4 main things to check to resolve this error.
Check your light switch
First check it is turned on at the mains, turn the light on and off at the switch, when on the bulb should be lit a bright white.
Too far away from your bridge
This depends on your set up and how many bulbs you have, if this is your first bulb then it could be too far from the bridge.
To see if this is the case try plugging the bulb into a light that is a close to the bridge as possible, turn it on and see if you can control it from your Hue app. If it is reachable and working then the issue is with the distance it was from the bulb.
The fix here is to either move the bulb closer to the bridge than it originally was, or add in another Hue bulb that is in between where the first bulb was and the bridge.
Hue uses Zigbee, and creates its own wireless network, each bulb helps link the network, so the more bulbs you have the better and stronger the Hue network is. This is not part of your home wireless internet network, that is different and separate.
Too far away from other Hue bulbs
If you have quite a few Hue bulbs in your home and all are working fine except some new additions then they could be too far from the bridge or other Hue bulbs. This can be common with the new outdoor Hue lights where there is a bigger distance between these and other bulbs you have.
The fix for this is to bring one closer to help bridge the gap in the network, or add in another bulb to help link them together. Again this can be tested by moving a bulb to see if it works when closer.
Your bulbs may all be close together, all working but sometimes it says unreachable for what seems like no reason at all. A cause of this could be interference from your home wireless network. This can be worse if the bridge and your Wifi router are next to each other too.
Your home internet WiFi and the Hue bridge that uses Zigbee to create a wireless network both broadcast on 2.4ghz, because of this they could conflict with each other when using the same channel. The fix here is to change the channel your bridge uses.
To do this load your Hue app:
- Go to > Settings
- Then > Hue bridges
- Select your bridge clicking the ‘i’
- Then go to > ‘ZigBee channel change’
- Here you can then change the channel, ensure all your lights are turned on when doing this.
There are different channels to try, so if the first choice doesn’t work then try another channel range.
My Hue Bridge can’t find my new Lights
When adding your Hue lights they may not be reachable by the bridge as they are too far away, however once added they can sometimes work fine. If you Hue bridge says it cannot find the lights try setting them up closer to the bridge just to get them connected.
Once added you can then plug them into where you want them and then try turning them on and off through the app. If it says they are unreachable then look at the fixes above to resolve this.
If with the bulb closer to the bridge it still cannot be found then you can add the bulb by manually entering the serial number via the Hue app. You can do this via settings and adding the serial number there.
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