Hi Remi
Am 19.12.2024 um 16:35 schrieb Remi Pommarel:
Hi Steffen.
On Thu, Dec 19, 2024 at 04:02:30PM +0100, Steffen Moser wrote:
Hello everyone,
I've encountered a possible issue in a DD-WRT [1] setup where broadcast
packets stop being delivered after a GTK (Group Temporal Key) exchange. This
issue occurs on a system with the following hardware:
Access Point Hardware: DynaLink DL-WRX36
Router Software: DD-WRT v3.0-r58819 std (12/13/24)
CPU: Qualcomm IPQ8072A
WiFi Chips: Qualcomm QCN5024 and Qualcomm QCN5054
WiFi Driver: ath11k
Firmware: WLAN.HK.2.12-01460-QCAHKSWPL_SILICONZ-1
NSS FW version: NSS.FW.12.5-210-HK.R
Kernel: Linux WL-AP-EG 6.6.64-rt29 #1791 SMP Thu Dec 12 16:41:51 +07
2024 aarch64 DD-WRT
The behavior is such that after a GTK exchange, the AP can get into a "weird
state". When being there, broadcast frames like ARP or mDNS are no longer
reliably delivered to connected clients while unicasts come still through.
In this "weird state", the channel quality (active time vs. busy time) goes
down and latencies to the still reachable WIFI clients rise.
This looks a lot like an issue we hit a while back. There is this patch
[0] from Qualcomm's wlan-open repository. It is a revert of [1]. Using
that the issue was never reproduced. Maybe this can help.
Also adding ath11k list.
Regards.
thank you for that hint. i will integrate it into dd-wrt asap
Sebastian
