Unstable 5Ghz with AX200 on Ubuntu 20.04

[gecastro]

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?

[DeividA_Intel]

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.

Regards,     

Deivid A.  

Intel Customer Support Technician  

[DeividA_Intel]

Hello gecastro, 

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

Regards,  

Deivid A.  

Intel Customer Support Technician  

[DeividA_Intel]

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