Question WiFi speeds slow down with time

[Golgofier]

Hey all!
I've been living with this issue for quite a while now but I've finally had enough.
In a nutshell, the problem is this: after a couple of hours (generally between 6-12 h), my WiFi 6 speeds slow down drastically. From about 1400 Mbps to 200 Mbps.
I have a Asus GT-AX11000 router, that is configured (by default) for three wireless networks - one 2,4 Ghz and two 5 Ghz. The second 5Ghz network is set to AX-mode (WiFi 6).
The speed issue is only present on the AX-mode network.

I have tried every setting available in the router to try to resolve this but to no avail, including changing channels, upgrading firmware and hard resets.
The only thing that "fixes" it temporarily is setting up a scheduled daily reboot, after which the speed are fine a gain for a couple of hours.
Anyone have any thought on this, please?

Attached a screenshot of the router settings for the network.

 

[Tech Junky]

SNBForums

Formerly the discussion forums of SmallNetBuilder.com. Now mostly ASUS Wi-Fi.

www.snbforums.com

Tons of Asus content over there. It's an odd problem though but on par for Asus. I use a Zyxel AP and don't have these problems with an uptime of 60+ days.

 

[Golgofier]

SNBForums

Formerly the discussion forums of SmallNetBuilder.com. Now mostly ASUS Wi-Fi.

www.snbforums.com

Tons of Asus content over there. It's an odd problem though but on par for Asus. I use a Zyxel AP and don't have these problems with an uptime of 60+ days.

Thanks for the tip! I made a post there as well.

 

[Tech Junky]

I see that

Tons of Asus nerds that are more familiar with the GUI / intricacies of how they operate. I see you have a couple of hits already.

 

[VirtualLarry]

overheating and throttling?