Philips TV Ambilight+hue 'No Bridge Found' — How to Fix It

What it means

When you set up Ambilight+hue on a Philips TV and it says it can't find a Philips Hue Bridge — 'No Hue Bridge found on your network' — it means the TV and the Hue Bridge aren't reachable to each other.
Almost always that's because they're on different networks (a guest Wi-Fi, a separate band, or different mesh segments), or the Hue Bridge needs a reboot or has a loose Ethernet cable.
Ambilight+hue only extends your TV's Ambilight glow onto your Hue lights — the TV itself works normally without it.

Affected Models

Philips Ambilight TVs with the Ambilight+hue feature (OLED, The One, PUS8xxx, PUS7xxx)
Used with a Philips Hue Bridge v2 (square model)
Note: the older round Hue Bridge v1 is no longer supported by Hue and won't work for this either

Common Causes

TV and Hue Bridge on different networks (TV on guest Wi-Fi, or a separate 2.4/5 GHz network)
Hue Bridge needs a reboot, or its Ethernet cable is loose / in a dead router port
Router blocking device-to-device discovery (AP isolation, strict IGMP snooping)
Hue Bridge powered off or its adapter failed
Mesh / multi-router setup where the TV and Bridge sit on different nodes that don't bridge discovery
Trying to use an unsupported old round v1 Hue Bridge
Hue system itself needs setting up first (no Bridge claimed in the Hue app yet)

How to Fix It

Confirm the Hue Bridge is set up and online.

Open the Philips Hue app on your phone and make sure it controls your lights — that proves the Bridge is working and on your network.
The Bridge has three round lights on top; all three should be lit.
If the network light is off, the TV will never find it.
Put the TV on the same network as the Bridge.

The TV must be on the same home network as the Hue Bridge — not a guest network, and ideally the same router.
If you have a mesh system, that's fine as long as everything is under the one system; if you run two separate routers, connect the TV and the Bridge to the same one for setup.
Reboot the Hue Bridge, the router, then the TV.

Unplug the Hue Bridge for ten seconds, plug it back in, wait for all three lights.
Reboot the router (off 30 seconds, on).
Restart the TV.
Then try the Ambilight+hue setup again from Settings > Ambilight > Ambilight+hue (or Ambilight Extensions).
Check restrictive router settings.

On some routers, 'AP isolation' / 'client isolation' or aggressive 'IGMP snooping' stops the TV from discovering the Bridge.
Turn AP isolation off; if you're comfortable in the router settings, try toggling IGMP snooping.
Reseat the Bridge's Ethernet cable and try a different LAN port on the router while you're at it.
Use a supported Bridge.

Ambilight+hue needs the current square Philips Hue Bridge (v2).
The old round v1 Bridge has been retired by Hue and won't work for this or with the current Hue app.
If you picked up a Bridge second-hand, check it's the square model before troubleshooting further.

Frequently Asked Questions

Do I need a Philips Hue Bridge for Ambilight+hue, or will Bluetooth Hue bulbs work?

You need the Hue Bridge.
Ambilight+hue talks to your lights through the Bridge over your home network — Bluetooth-only Hue bulbs (the ones controlled directly from the Hue Bluetooth app without a Bridge) aren't supported for this feature.
Add the bulbs to a square Hue Bridge first, confirm the Hue app controls them, make sure the TV and the Bridge are on the same network, and then run the Ambilight+hue setup on the TV.