RT-AC88U wifi error

[Yesitsme]

The system is set up as AiMesh and I use RT-AC88u as the main router and several RT-AC86u as nodes.
All nodes are connected to the main router with LAN cables.
When I’m connected to the main router via Wi-Fi, it looks like I’m online with full strength but I lose contact with the internet (I also can’t connect to the router’s web interface).
When I turn Wi-Fi on and off on my phone, the internet will work for about 20 seconds before everything stops working.
When I’m connected to Wi-Fi via one of the nodes, everything works fine and I get full internet speed.
Does anyone have an idea of what the error might be?

 

[L&LD]

Welcome to the forums @Yesitsme.

How many nodes? How big is the area you're covering? What construction materials are used for the walls/floors?

Are you using LAN ports 5-8 on the RT-AX88U? If so, test with a switch connected to Ports 1 to 4 instead (do not use Ports 5-8).

Have you tried an electrical reset? Power down all network equipment, wait for a minute or two, then power everything back up. Beginning with the main router first.

 

[Yesitsme]

Hi!
My system covers about 300m2 on two floors and the building material is mostly wood.
All the nodes are connected through a switch that is connected to port nr 1.
I already tried the electrical reset and the WiFi still only connects me to the internet when I am connected through the nodes. It is kind of weird.

 

[L&LD]

How many nodes?

150 Metres square is all the area you're covering. RF is a 3D propagation.

Is the RT-AC88U using defaults, or are you using extra features? What firmware/version is it running?

How recently has this worked for you (if ever)? What changed since then?

It's this a new router to you? Have you ever reset it completely? Did you configure it with a saved backup config file?

If you powered down all the nodes, is the main router's WiFi stable?

 

[Tech9]

The system is set up as AiMesh and I use RT-AC88u as the main router and several RT-AC86u as nodes.

My system covers about 300m2 on two floors and the building material is mostly wood.

You perhaps need 2x RT-AC86U only to cover this house. Remove the older and slower RT-AC88U. Plan entire Wi-Fi system overhaul with something else because RT-AC86U is also facing End-Of-Life soon. Just because you have a bunch of older Asus routers doesn't mean your only option is AiMesh. If you have wires you are not limited to home AIO routers and "mesh" sets. A cluster of 2-3 Cisco or Zyxel APs with PoE switch for example will make your entire household happier. And you'll have the chance to learn something new around networking and Wi-Fi.

 

[Yesitsme]

Thank you for your answers. The store where i bought the main router will replace it under warranty.

 

[Ripshod]

If you've recently bough the RT-AC88U you should return it anyway. It's EOL and no longer supported by Asus.