Re: wlan0 goes down but system doesn't notice

hi!

Would you please do

dmesg | grep run0

and report it here?

i have plenty of run devices, I can go grab one and stick it in my RPI4 and
see if it slowly goes deaf/blind like yours.
(Then I can figure out what to do to fix that. :-)



-adrian


On Sat, 22 Nov 2025 at 18:18, bob prohaska <fbsd@www.zefox.net> wrote:

> A Pi2 running
> FreeBSD generic 16.0-CURRENT FreeBSD 16.0-CURRENT #5
> main-n281932-07e6bfeae5a1: Fri Nov 21 00:43:58 PST 2025     root@generic:/usr/obj/usr/src/arm.armv7/sys/GENERIC
> arm
>
> seems to be dropping its wifi without noticing.
>
> It picks up a connection hands off on boot but loses it after a few hours.
> Sometimes it reports
>
> Nov 22 17:12:53 generic dhclient[4381]: send_packet: No buffer space
> availableg: Name could not be resolved at this time (2)
>
> Attempts to ping by name seem to fail silently, ping by number fails with
>
> # ping 192.168.1.254
> PING 192.168.1.254 (192.168.1.254): 56 data bytes
> ^C
> --- 192.168.1.254 ping statistics ---
> 21 packets transmitted, 0 packets received, 100.0% packet loss
>
> Resetting the interface seems to fix the problem without difficulty:
>
> # ifconfig wlan0 down
> Nov 22 17:29:23 generic dhclient[4381]: My address (192.168.1.11) was
> deleted, dhclient exiting
> #
> # Nov 22 17:29:26 generic dhclient[4381]: connection closed
> Nov 22 17:29:26 generic dhclient[4381]: exiting.
>
> # ifconfig wlan0 up
> run0: firmware RT3071 ver. 0.33 loaded
> # Nov 22 17:29:58 generic wpa_supplicant[3373]: ioctl[SIOCS80211, op=20,
> val=0, arg_len=7]: Can't assign requested address
> # ping www.zefox.net
> PING www.zefox.net (50.1.20.27): 56 data bytes
> 64 bytes from 50.1.20.27: icmp_seq=0 ttl=63 time=5.868 ms
> 64 bytes from 50.1.20.27: icmp_seq=1 ttl=63 time=4.630 ms
> 64 bytes from 50.1.20.27: icmp_seq=3 ttl=63 time=4.892 ms
> 64 bytes from 50.1.20.27: icmp_seq=4 ttl=63 time=4.890 ms
>
> It isn't surprising the wifi link drops, signal has been poor for
> some time. It's more surprising that the failure isn't noticed and
> corrected by the system. Dmesg duly notes my manual resets of wlan0
> but reports no other problems.
>
> Any suggestions appreciated.
>
> Thanks for reading,
>
> bob prohaska
>
>