My Intel AX200 (iwx0) repeatedly crashes into fatal firmware errors on
OpenBSD 8.0-beta, causing visible link drops (DHCP re-leases every few
minutes). Power saving is disabled; the card does not recover on its
own, I have to bring the interface down/up or reboot.
Machine:
ASRock X300M-STX, AMD Ryzen 7 5700G, BIOS P1.70 (07/01/2021)
Card / firmware:
iwx0 at pci3 dev 0 function 0 "Intel Wi-Fi 6 AX200" rev 0x1a, msix
iwx0: restrict all mbufs to low memory
iwx0: hw rev 0x340, fw 77.30b1cbd8.0, address 70:32:17:e3:a3:28
Kernel:
OpenBSD tron.fritz.box 8.0 GENERIC.MP#33 amd64
OpenBSD 8.0-beta (GENERIC.MP) #33: Thu Sep 10 15:49:04 MDT 2026
[email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
Symptoms (from dmesg):
iwx0: device timeout
iwx0: device timeout
iwx0: fatal firmware error
iwx0: could not update PHY context (error 35)
iwx0: failed to update PHY
... (pattern repeats, 8+ occurrences today)
Correlated /var/log/daemon entries (link drops, DHCP re-lease ~40s later):
Sep 16 08:50:09 /bsd: iwx0: fatal firmware error
Sep 16 08:50:10 dhcpleased[29457]: deleting nameservers ... on iwx0
Sep 16 08:50:50 dhcpleased[29457]: adding 192.168.178.26 to iwx0
(further drops at 08:51, 08:53, 09:24, 11:57, 12:01, 12:56;
similar pattern yesterday evening, Sep 15 22:01 - 22:11)
Interface configuration (/etc/hostname.iwx0) - note -powersave:
join Zentrale wpakey <redacted>
join devolo-821 wpakey <redacted>
dhcp
up
-powersave
The drop rate does not change with -powersave. The AP is a Fritz!Box
(192.168.178.1); the card associates fine and then crashes minutes to
hours later, sometimes repeatedly within minutes.
Please let me know if I can provide anything else.
