Broadband Hardware

What do the lights on the TP-Link TL-MR6400 mean?

TP-Link TL-MR6400
Light work: find out what those LEDs indicate

The TP-Link TL-MR6400 is a popular mobile 4G router. It’s great for taking with you when you travel, as a backup to your broadband or even as your primary home internet connection.

It has a useful row of lights on the front – rather than one or two that flash different colours, this gives you five lights, but each can only be on, off or flashing. Let’s learn what each one does and what you should do in each case.

We’ll take the LEDs from left to right:

Power

On – This is easy. The power to the router is on.
Off – No power!
Flashing – The router is either starting up or a firmware update is occurring. Don’t touch that power switch!

Internet

On – The router has successfully connected to the internet
Off – There’s currently no internet connection

Wi-Fi

On – Wi-Fi is enabled
Off – Wi-Fi has been disabled
Flashing – A WPS connection is in progress, which may take up to two minutes

LAN

On – At least one LAN port is connected to a powered-on device
Off – No LAN port is connected to a powered-on device

Signal Strength

On – This indicates the signal strength the router is receiving from the mobile internet; more lit bars indicate a better signal strength
Off – There is no mobile internet signal. If your Internet LED is on, relocate the router to a better location.

The best 5G router?

About the author

David Artiss

Currently working for a technology company based in San Francisco, David has worked in IT for nearly 30 years. He is a keen gamer and happily admits to being a gadget nerd too.

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