[Bug 278935] [iwlwifi] fails to establish a connection, or fails to maintain it (intel 8265)

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=278935

--- Comment #8 from Dave Cottlehuber <dch@freebsd.org> ---
Created attachment 250615
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=250615&action=edit
dmesg 14.1-BETA2 kldunload to restart, fails again

iwlwifi state changes below

wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=0
        ether 00:28:f8:d0:91:52
        inet 172.16.2.21 netmask 0xffffff00 broadcast 172.16.2.255
        inet6 fe80::228:f8ff:fed0:9152%wlan0 prefixlen 64 scopeid 0x2
        groups: wlan
        ssid skunkwerks channel 1 (2412 MHz 11g) bssid 80:2a:a8:84:e2:a3
        regdomain ETSI2 country AT authmode WPA2/802.11i privacy ON
        deftxkey UNDEF AES-CCM 2:128-bit txpower 30 bmiss 7 scanvalid 60
        protmode CTS wme roaming MANUAL
        parent interface: iwlwifi0
        media: IEEE 802.11 Wireless Ethernet OFDM/36Mbps mode 11g
        status: associated
        nd6 options=23<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL>

wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=0
        ether 00:28:f8:d0:91:52
        inet 172.16.2.21 netmask 0xffffff00 broadcast 172.16.2.255
        inet6 fe80::228:f8ff:fed0:9152%wlan0 prefixlen 64 scopeid 0x2
        groups: wlan
        ssid skunkwerks channel 1 (2412 MHz 11g) bssid 80:2a:a8:84:e2:a3
        regdomain ETSI2 country AT authmode WPA2/802.11i privacy ON
        deftxkey UNDEF AES-CCM 2:128-bit txpower 30 bmiss 7 scanvalid 60
        protmode CTS wme roaming MANUAL
        parent interface: iwlwifi0
        media: IEEE 802.11 Wireless Ethernet OFDM/54Mbps mode 11g
        status: associated
        nd6 options=23<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL>

wlan0: flags=8c43<UP,BROADCAST,RUNNING,DRV_OACTIVE,SIMPLEX,MULTICAST> metric 0
mtu 1500
        options=0
        ether 00:28:f8:d0:91:52
        inet 172.16.2.21 netmask 0xffffff00 broadcast 172.16.2.255
        inet6 fe80::228:f8ff:fed0:9152%wlan0 prefixlen 64 scopeid 0x2
        groups: wlan
        ssid "" channel 1 (2412 MHz 11g)
        regdomain ETSI2 country AT authmode WPA1+WPA2/802.11i privacy ON
        deftxkey UNDEF txpower 30 bmiss 7 scanvalid 60 protmode CTS wme
        roaming MANUAL
        parent interface: iwlwifi0
        media: IEEE 802.11 Wireless Ethernet autoselect (autoselect)
        status: no carrier
        nd6 options=23<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL>

wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=0
        ether 00:28:f8:d0:91:52
        inet 172.16.2.21 netmask 0xffffff00 broadcast 172.16.2.255
        inet6 fe80::228:f8ff:fed0:9152%wlan0 prefixlen 64 scopeid 0x2
        groups: wlan
        ssid skunkwerks channel 1 (2412 MHz 11g) bssid 80:2a:a8:84:e2:a3
        regdomain ETSI2 country AT authmode WPA2/802.11i privacy ON
        deftxkey UNDEF AES-CCM 2:128-bit txpower 30 bmiss 7 scanvalid 60
        protmode CTS wme roaming MANUAL
        parent interface: iwlwifi0
        media: IEEE 802.11 Wireless Ethernet OFDM/54Mbps mode 11g
        status: associated
        nd6 options=23<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL>

wlan0: flags=8c43<UP,BROADCAST,RUNNING,DRV_OACTIVE,SIMPLEX,MULTICAST> metric 0
mtu 1500
        options=0
        ether 00:28:f8:d0:91:52
        inet 172.16.2.21 netmask 0xffffff00 broadcast 172.16.2.255
        inet6 fe80::228:f8ff:fed0:9152%wlan0 prefixlen 64 scopeid 0x2
        groups: wlan
        ssid skunkwerks channel 1 (2412 MHz 11g)
        regdomain ETSI2 country AT authmode WPA1+WPA2/802.11i privacy ON
        deftxkey UNDEF txpower 30 bmiss 7 scanvalid 60 protmode CTS wme
        roaming MANUAL
        parent interface: iwlwifi0
        media: IEEE 802.11 Wireless Ethernet autoselect (autoselect)
        status: no carrier
        nd6 options=23<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL>

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