Wi-Fi spontaneously stopped working on KL2

[ajkessel]

The latest firmware update bricked my KL2, so I did a factory reset and updated to the latest. I then installed my customizations: Nickelmenu, KFMon, KOReader. At first, it seemed to work fine (including networking), but now I can't connect to Wi-Fi. I only ever see "No Wi Fi networks found."

Interestingly, Wi-Fi still works in KOReader, just not in the native Kobo environment.

I've tried toggling Wi-Fi, power cycling the Kobo, power cycling the network, deleting Wi-Fi networks from settings (none appear - "Your Kobo eReader has no known networks"), switching my WAP to 2.4 GHz, as well as two different hotspots/air-cards. No network ever appears.

Is there any other trick to getting networking back short of another factory reset?

Here's what I see in syslog:

Sep  4 12:02:16 dhcpcd[1518]: version 6.6.6 starting
Sep  4 12:02:16 dhcpcd[1518]: wlan0: using /sys hwaddr: 58:b0:d4:97:55:da
Sep  4 12:02:16 dhcpcd[1518]: wlan0: executing `/libexec/dhcpcd-run-hooks' PREINIT
Sep  4 12:02:16 dhcpcd[1518]: wlan0: executing `/libexec/dhcpcd-run-hooks' NOCARRIER
Sep  4 12:02:16 dhcpcd[1518]: no interfaces have a carrier
Sep  4 12:02:16 dhcpcd[1518]: forking to background
Sep  4 12:02:16 dhcpcd[1518]: forked to background, child pid 1528
Sep  4 12:02:16 dhcpcd[1528]: wlan0: waiting for carrier
Sep  4 12:02:17 wpa_supplicant[1516]: wlan0: Trying to associate with 48:dd:0c:c2:b1:a5 (SSID='mylan' freq=2437 MHz)
Sep  4 12:02:17 wpa_supplicant[1516]: wlan0: CTRL-EVENT-STARTED-CHANNEL-SWITCH freq=2437 ht_enabled=1 ch_offset=0 ch_width=20 MHz cf1=2437 cf2=0
Sep  4 12:02:17 wpa_supplicant[1516]: wlan0: Associated with 48:dd:0c:c2:b1:a5
Sep  4 12:02:17 wpa_supplicant[1516]: wlan0: CTRL-EVENT-SUBNET-STATUS-UPDATE status=0
Sep  4 12:02:17 wpa_supplicant[1516]: wlan0: WPA: Key negotiation completed with 48:dd:0c:c2:b1:a5 [PTK=CCMP GTK=CCMP]
Sep  4 12:02:18 wpa_supplicant[1516]: wlan0: CTRL-EVENT-CONNECTED - Connection to 48:dd:0c:c2:b1:a5 completed [id=0 id_str=]
Sep  4 12:02:18 dhcpcd[1528]: wlan0: carrier acquired
Sep  4 12:02:18 dhcpcd[1528]: wlan0: executing `/libexec/dhcpcd-run-hooks' CARRIER
Sep  4 12:02:18 dhcpcd[1528]: wlan0: delaying IPv4 for 1.0 seconds
Sep  4 12:02:18 dhcpcd[1528]: wlan0: using ClientID 01:58:b0:d4:97:55:da
Sep  4 12:02:19 dhcpcd[1528]: wlan0: reading lease `/var/db/dhcpcd-wlan0-mylan.lease'
Sep  4 12:02:19 dhcpcd[1528]: wlan0: rebinding lease of 192.168.5.28
Sep  4 12:02:19 dhcpcd[1528]: wlan0: sending REQUEST (xid 0x77fe7b6f), next in 4.1 seconds
Sep  4 12:02:19 dhcpcd[1528]: wlan0: acknowledged 192.168.5.28 from 192.168.4.1
Sep  4 12:02:19 dhcpcd[1528]: wlan0: leased 192.168.5.28 for 13282 seconds
Sep  4 12:02:19 dhcpcd[1528]: wlan0: renew in 6641 seconds, rebind in 11621 seconds
Sep  4 12:02:19 dhcpcd[1528]: wlan0: writing lease `/var/db/dhcpcd-wlan0-mylan.lease'
Sep  4 12:02:19 dhcpcd[1528]: wlan0: adding IP address 192.168.5.28/22
Sep  4 12:02:19 dhcpcd[1528]: wlan0: adding route to 192.168.4.0/22
Sep  4 12:02:19 dhcpcd[1528]: wlan0: adding default route via 192.168.4.1
Sep  4 12:02:19 dhcpcd[1528]: wlan0: executing `/libexec/dhcpcd-run-hooks' REBOOT
Sep  4 12:02:32 dhcpcd[1528]: received signal TERM from PID 1562, stopping
Sep  4 12:02:32 dhcpcd[1528]: wlan0: removing interface
Sep  4 12:02:32 dhcpcd[1528]: wlan0: executing `/libexec/dhcpcd-run-hooks' STOPPED
Sep  4 12:02:32 dhcpcd[1528]: exited
Sep  4 12:02:32 wpa_supplicant[1516]: wlan0: CTRL-EVENT-DISCONNECTED bssid=48:dd:0c:c2:b1:a5 reason=3 locally_generated=1
Sep  4 12:02:32 wpa_supplicant[1516]: nl80211: deinit ifname=wlan0 disabled_11b_rates=0
Sep  4 12:02:32 wpa_supplicant[1516]: wlan0: CTRL-EVENT-TERMINATING 
Sep  4 12:04:12 dhcpcd[1624]: version 6.6.6 starting
Sep  4 12:04:12 dhcpcd[1624]: wlan0: using /sys hwaddr: 58:b0:d4:97:55:da
Sep  4 12:04:12 dhcpcd[1624]: wlan0: executing `/libexec/dhcpcd-run-hooks' PREINIT
Sep  4 12:04:12 dhcpcd[1624]: wlan0: executing `/libexec/dhcpcd-run-hooks' NOCARRIER
Sep  4 12:04:12 dhcpcd[1624]: no interfaces have a carrier
Sep  4 12:04:12 dhcpcd[1624]: forking to background
Sep  4 12:04:12 dhcpcd[1624]: forked to background, child pid 1634
Sep  4 12:04:12 dhcpcd[1634]: wlan0: waiting for carrier
Sep  4 12:04:13 wpa_supplicant[1622]: wlan0: Trying to associate with 48:dd:0c:c2:b1:a5 (SSID='mylan' freq=2437 MHz)
Sep  4 12:04:13 wpa_supplicant[1622]: wlan0: CTRL-EVENT-STARTED-CHANNEL-SWITCH freq=2437 ht_enabled=1 ch_offset=0 ch_width=20 MHz cf1=2437 cf2=0
Sep  4 12:04:13 wpa_supplicant[1622]: wlan0: Associated with 48:dd:0c:c2:b1:a5
Sep  4 12:04:13 wpa_supplicant[1622]: wlan0: CTRL-EVENT-SUBNET-STATUS-UPDATE status=0
Sep  4 12:04:13 wpa_supplicant[1622]: wlan0: WPA: Key negotiation completed with 48:dd:0c:c2:b1:a5 [PTK=CCMP GTK=CCMP]
Sep  4 12:04:13 wpa_supplicant[1622]: wlan0: CTRL-EVENT-CONNECTED - Connection to 48:dd:0c:c2:b1:a5 completed [id=0 id_str=]
Sep  4 12:04:13 dhcpcd[1634]: wlan0: carrier acquired
Sep  4 12:04:13 dhcpcd[1634]: wlan0: executing `/libexec/dhcpcd-run-hooks' CARRIER
Sep  4 12:04:13 dhcpcd[1634]: wlan0: delaying IPv4 for 0.7 seconds
Sep  4 12:04:14 dhcpcd[1634]: wlan0: using ClientID 01:58:b0:d4:97:55:da
Sep  4 12:04:14 dhcpcd[1634]: wlan0: reading lease `/var/db/dhcpcd-wlan0-mylan.lease'
Sep  4 12:04:14 dhcpcd[1634]: wlan0: rebinding lease of 192.168.5.28
Sep  4 12:04:14 dhcpcd[1634]: wlan0: sending REQUEST (xid 0xc914f270), next in 3.9 seconds
Sep  4 12:04:14 dhcpcd[1634]: wlan0: acknowledged 192.168.5.28 from 192.168.4.1
Sep  4 12:04:14 dhcpcd[1634]: wlan0: leased 192.168.5.28 for 13167 seconds
Sep  4 12:04:14 dhcpcd[1634]: wlan0: renew in 6583 seconds, rebind in 11521 seconds
Sep  4 12:04:14 dhcpcd[1634]: wlan0: writing lease `/var/db/dhcpcd-wlan0-mylan.lease'
Sep  4 12:04:14 dhcpcd[1634]: wlan0: adding IP address 192.168.5.28/22
Sep  4 12:04:14 dhcpcd[1634]: wlan0: adding route to 192.168.4.0/22
Sep  4 12:04:14 dhcpcd[1634]: wlan0: adding default route via 192.168.4.1
Sep  4 12:04:14 dhcpcd[1634]: wlan0: executing `/libexec/dhcpcd-run-hooks' REBOOT
Sep  4 12:04:29 dhcpcd[1634]: received signal TERM from PID 1665, stopping
Sep  4 12:04:29 dhcpcd[1634]: wlan0: removing interface
Sep  4 12:04:29 dhcpcd[1634]: wlan0: executing `/libexec/dhcpcd-run-hooks' STOPPED
Sep  4 12:04:29 wpa_supplicant[1622]: wlan0: CTRL-EVENT-DISCONNECTED bssid=48:dd:0c:c2:b1:a5 reason=3 locally_generated=1
Sep  4 12:04:29 dhcpcd[1634]: exited
Sep  4 12:04:29 wpa_supplicant[1622]: nl80211: deinit ifname=wlan0 disabled_11b_rates=0
Sep  4 12:04:29 wpa_supplicant[1622]: wlan0: CTRL-EVENT-TERMINATING

I also have these customizations in Kobo eReader.conf. Seems like these couldn't be related but I include for completeness:

[FeatureSettings]
ExcludeSyncFolders=(\\.(?!kobo|adobe).+|([^.][^/]*/)+\\..+)
Screenshots=true

[DeveloperSettings]
AutoUsbGadget=true

Update: I tried a factory reset, and it is *still* not seeing any Wi Fi access points.

[ajkessel]

Figured out the issue--it was kfmon--so I've started a new thread here.

[DNSB]

Good to hear you managed to troubleshoot the problem though that seems to have opened a whole new can of worms.