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Forum Discussion
Intel AX200/AX201 devices cause ALL 5ghz clients to stop communicating on R6900P
Hi, I've been struggling with this issue for several months and I've tried everything I can. I work for a large tech company and very network savvy and I've done everything I can to solve this o...
I have had the same issue with my router and it was the driver for the Intel AX200/201 that was causing the disconnect, update all of the adapters to the 21.120.2.1 driver version from 9/6/2020. This cleared up the exact same problem to me, hopefully thart helps.
Disabling mimo on the router cleared up the issue.
Thanks for the suggestion to disable the MU-MIMO, that fixed the issue for me while able to keep my PC's bandwidth at 5G.
Even with the latest Intel AX200 driver installed just now (22.0.0.6, 9/17/2020), the issue still persists when the set to dual band or only at 5GHz a.
So, for my experience, it's either set my PC's Wifi to 2.4GHz or disable MU-MIMO.What would I miss without MIMO? I do have other PCs and devices, I have yet to experience lag even with the household streaming all at the same time.
- https://www.networkworld.com/article/3250268/what-is-mu-mimo-and-why-you-need-it-in-your-wireless-routers.html
This may provide some insight into your question.You can disable MU-MIMO if it's causing issues, with minimal performance real world effect, SmallNetbuilder has more in depth tests. It works best on Qualcomm based routers in my experience where there is a consistent noticable gain, on Broadcom based ones however not so much and in some instances on BCM chipsets it can actually make performance worse from what I saw in tests. Some Broadcom WiFi clients like the Galaxy S6/S7 would even drop to like single antenna mode with MU. Intel and Qualcomm devices do it well, but even then its most effective when devices are a decent distance apart.
