@Gazouille 

Hello, what's the light status on the router? Is the wifi LED on? After the factory reset, can you see the 2.4G default wifi signal? 

You can try to change the network name and channel on the router.

Good day.

@Stella.Q 

Hello, 

Thanks for the answers.

Before and after the factory reset, the Wifi lights are on.
The channels are left in auto (it has always worked this way).

The channel name is left by default (but I'll try to change it).

On 2.4G and 5.0G compatible devices, only the 5.0 network is visible.
On 2.4G compatible devices only... I can't see anything!

The router was configured since October 2019 and worked perfectly in 2.4G and 5.0G.
As by performing a factory reset, I don't solve my problem, I think it's an electronic failure on the 2.4G part rather than a parameter setting problem.

Your opinion ?

@Kevin_Z 

Hello,

thanks for your feedback.

I will try this when I'll come back from work.

I'll keep you informed

Séb

@Kevin_Z 

Ok, definitely not working.

On 2.4G settings, I've changed the canal, the width and the name and still not visible by any of my deconnected devices 😆

Maybe someone with a new idea ?