Broadband Hardware

What does the coloured light on my TP-Link Deco M5 mean?

TP-Link Deco M5
Lightbulb moment: does red mean danger?

TP-Link is one of many companies offering mesh routers – several small devices that blanket your house in Wi-Fi, instead of a single router. The TP-Link Deco M5 sports a single, round, LED at the top of each device – but what do the LED colours mean?

TP-Link Deco M5 LED colours explained

Yellow (solid)

The Deco unit is starting up.

Blue (pulsing)

The Deco unit is ready for setup.

Blue (solid)

The Deco unit is in the setup process.

Green (solid)

The Deco unit is connected to the internet and is working properly.


Something’s gone wrong! Check the Deco app for more details.


Now read this: how do I set up Wi-Fi calling on an iPhone?

About the author

David Artiss

Works for Automattic Inc., the company behind and Tumblr. Tech geek, international speaker and occasional PC Pro podcaster. Lover of Lego and video games.

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