Hi @matz.
Thanks for reaching out and welcome to the community!
I appreciate your detailed post outlining your concern, let me help and try to figure this out.
It sounds like it is an association failure and this is a known issue with Asus routers with Airtime Fairness.
To determine if that is the cause, check the router settings and if there’s an Airtime Fairness feature, that needs to be disabled.
NOTE: You may reach out to the router manufacturer for assistance if you’re not able to access the settings.
- Log into the ASUS router.
- Under Advanced Settings, click Wireless.
- Click the Professional tab.
- Disable Airtime Fairness and click Apply.
- Change the Frequency to 5GHz.
- Disable Airtime Fairness and click Apply.
Hopefully, that helps but if not, please submit a diagnostic report and reply with the confirmation number, I'd start by reviewing your system and see if there’s anything causing this issue.
Let us know how it goes and if you have any questions feel free to reach out, we’re always here to help.