Intel 8265 Firmware issue with TPC (802.11h)

[NSing13]

Hi All,

Network Engineering of medical company reported Intel 8265 chipset crashing while doing TPC whenever asked to connect to any DFS channel. Tests were done with Linux machine, driver/kernel version- 4.9 and 4.8. FW in the chipset is 22.361476.0

The "dmesg" shows following error messages:

Iwlwifi 0000:02:00.0: Queue 2 stuck for 10000ms

….

Iwlwifi 0000:02:00.0: Microcode SW error detected. Restarting 0x2000000

Ieee80211 phy0: Hardware restart was requested

….

Complete logs are attached.

We would like to know why this issue occurs and are there other conditions which can cause such crashing.

Thanks

[idata]

Hello nishant1455,

Thanks for posting in our community. We understand that you're experiencing issues with 802.11h on Linux*.Please notice that the drivers for Intel® Wireless adapters on Linux* are developed through the open community. For support, you may email the Linux* wireless directly or file the bug at kernel's bugzilla*:- https://wireless.wiki.kernel.org/en/users/Drivers/iwlwifi# support Linux* Wireless - Mailing- https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi/debugging Linux* Wireless - Bugs and Support- https://www.intel.com/content/www/us/en/support/articles/000005511/network-and-i-o/wireless-networking.html Linux* Support for Intel® Wireless AdaptersPlease let us know if anything else is required from our side.Best regards,Eugenio F.

[NSing13]

Thanks Eugenio for guidance.