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Unstable 5Ghz with AX200 on Ubuntu 20.04


The problem is only for the 5Ghz wifi, I can connect to the same router using 2.4Ghz. Both networks work well from Windows 10.

I have a motherboard MSI Tomahawk x570 WIFI with an integrated AX200. Ubuntu detects the controller correctly:

$ lspci
28:00.0 Network controller: Intel Corporation Wi-Fi 6 AX200 (rev 1a)


I'm using the OEM kernel which already contains the firmware for this wifi adapter.

$uname -a

Linux pc 5.10.0-1034-oem #35-Ubuntu SMP Wed Jun 23 09:55:56 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

The router is a TP-Link Archer VR1600v v1, with mode 802.11a/n/ac mixed.

I usually can connect to the network for a few minutes, then the connection breaks. I can see these logs:
[ 312.116046] wlo1: Connection to AP xx:xx:xx:xx:xx lost
[ 314.589392] wlo1: authenticate with xx:xx:xx:xx:xx
[ 314.591769] wlo1: send auth to xx:xx:xx:xx:xx (try 1/3)
[ 314.622154] wlo1: authenticated
[ 314.623659] wlo1: associate with xx:xx:xx:xx:xx(try 1/3)
[ 314.735634] wlo1: associate with xx:xx:xx:xx:xx (try 2/3)
[ 314.843587] wlo1: associate with xx:xx:xx:xx:xx (try 3/3)
[ 314.849432] wlo1: RX AssocResp from xx:xx:xx:xx:xx (capab=0x11 status=0 aid=3)
[ 314.851325] wlo1: associated
[ 315.490761] iwlwifi 0000:28:00.0: Session protection failure
[ 315.490767] iwlwifi 0000:28:00.0: No beacon heard and the session protection is over already...


Any ideas about how to solve the problem?

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3 Replies

Hello gecastro,  


Thank you for posting on the Intel® communities.   


In order to better assist you, please provide the following:  


1. The brand and model number of your system. You can also provide the Intel® System Support Utility for the Linux* Operating System for more details: https://downloadcenter.intel.com/download/26735/Intel-System-Support-Utility-for-the-Linux-Operating-System

2. Did you noticed the issue after a system update? 

3. Run the following commands and send us the outcome:  

· modinfo iwlwifi > If there is no output, then the module isn’t installed this is the distribution installation issue.  

· lsmod | grep iwlwifi > If the result is empty, the driver hasn't been loaded. Most likely to be a distribution issue.  

· To verify, please type: dmesg | grep iwlwifi > If the result is empty, the driver wasn’t initialized and this is a distribution issue. If there is a result populated, proceed with the next step.   

· dmesg | grep “no suitable firmware found!” > If the result is not empty, it means you don't have a suitable FW (API mentioned in the dmesg).  

· Please visit here: https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi for supported FW, or here https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/ for the latest versions.  

4. If the above steps don't work, collect the debug data:  

Type: dmesg | grep ASSERT   

If the output is empty, please follow this wiki: https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi/debugging to extract dmesg and trace-cmd.  

If the output has value, please collect it from the wiki FW dump too.


Deivid A.  

Intel Customer Support Technician  

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Hello gecastro, 


Were you able to check the previous post and get the information requested? Please let me know if you need more assistance.   




Deivid A.  

Intel Customer Support Technician  

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Hello gecastro, 

I would like to let you know that we support the use of the drivers only in the kernel version the driver was a part of, if the issue persists after the troubleshooting steps are performed I recommend you to check with the Distro support or visit the Linux forums.

I will close this inquiry. If you need further assistance or if you have additional questions, please create a new thread and we will gladly assist you. 

Best regards,  

Deivid A.  

Intel Customer Support Technician 

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