[Bug 264238] WiFi stops working after upgrade from 13.0 to 13.1, AR9285

From: <bugzilla-noreply_at_freebsd.org>
Date: Fri, 27 May 2022 14:44:05 UTC

--- Comment #4 from Jaskie <jiangjun12321@yahoo.com> ---
I tried what you suggested. I boot into 13.1 BE, again ifconfig reports wlan0
to be connected, while there is no internet access as tested from Firefox.
I then opened terminal and issued tcpdump -i wlan0 -w dhcp-issue.bpf -s0, there
is one line output:

tcpdump: listening on wlan0 link-type EN10MB (Ethernet), capture size 262144

And then nothing echoes back. I tried service start dhclient and it says it's
running. I restarted it, stopped and started again, I tried opening sites in
Firefox. All the time nothing echoes back from tcpdump.

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