Hello, A router firmware upgrade has caused my network-manager system not to be
able to connect to the fastest wifi access point. I'd like to know how to
troubleshoot exactly what is going on so I can provide feedback to either the
NIC driver maintainers, the software stack, the Asus firmware people, etc.
I'm running Debian testing (v11 + updates.) network-manager is at version
1.30.6-1. The NIC is an Asus USB dongle running the rtl8814au module from
aircrack-ng. The access point is an Asus RT-AX88u router (irony, I know).
This system was connected to a wifi network called wln. Because of old smart
speakers, I had to split my network. wln runs on the 5 GHz band and
"wln_legacy" runs on the 2.4 GHz band. The server was connected to the wln SSID.
I upgraded the Asus router firmware, a mistake in hindsight. My Windows tablet
and my iDevices are talking with the 5 GHz wln network just fine as before. But
network-manager (or something underneath that) is not able to connect.
The wln network is still visible:
$ nmcli dev wifi list
...
* 04:D9:F5:FA:D4:F8 wln_legacy Infra 7 540 Mbit/s 87 ▂▄▆█
WPA2
04:D9:F5:FA:D4:FC wln Infra 52 540 Mbit/s 24 ▂___
WPA2
But when trying to bring the wln connection up, I see messages in the system
journal like this:
Sep 03 12:46:11 raptor NetworkManager[555]: <info> [1630698371.4330] device
(wlx1831bf53a3a2): Activation: starting connection 'wln'
(afc892b2-7e5f-45a5-9858-16a155bc8bb3)
Sep 03 12:46:11 raptor NetworkManager[555]: <info> [1630698371.4384] device
(wlx1831bf53a3a2): state change: disconnected -> prepare (reason 'none',
sys-iface-state: 'managed')
Sep 03 12:46:11 raptor NetworkManager[555]: <info> [1630698371.5565] device
(wlx1831bf53a3a2): state change: prepare -> config (reason 'none',
sys-iface-state: 'managed')
Sep 03 12:46:11 raptor NetworkManager[555]: <info> [1630698371.5575] device
(wlx1831bf53a3a2): state change: config -> need-auth (reason 'none',
sys-iface-state: 'managed')
Sep 03 12:46:11 raptor NetworkManager[555]: <info> [1630698371.5637] device
(wlx1831bf53a3a2): state change: prepare -> config (reason 'none',
sys-iface-state: 'managed')
Sep 03 12:46:11 raptor NetworkManager[555]: <info> [1630698371.5751] device
(wlx1831bf53a3a2): supplicant interface state: disconnected -> scanning
Sep 03 12:46:37 raptor wpa_supplicant[564]: wlx1831bf53a3a2: Reject scan
trigger since one is already pending
Sep 03 12:46:37 raptor NetworkManager[555]: <info> [1630698397.1961] device
(wlx1831bf53a3a2): state change: config -> failed (reason 'ssid-not-found',
sys-iface-state: 'managed')
How can I gather more debug information, to better articulate what is going on?
I'd appreciate some pointers! Thank you in advance.
Alan
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