Hi Playing with different 802.11ac usb devices I noticed the small 5 GHz only TP-Link Archer T1U (usbid 2357:0105) only works if you try to connect to a pure 5 GHz 802.11n network. In this case no problem at all.
But if you try to connect to a 802.11ac/n network, it does not connect, falling in a endless connecting loop. Tested with kernel 5.3.0-2-amd64 (5.3.9-3) and firmware-misc-nonfree 20190717-2 over the same WiFi router, only changing the 5 GHz band mode from N to AC/N. Sorry if this is not the correct mailing list but I think there is not a dedicated wireless Debian mailing list. Please contact me if someone need more data. Greetings Syslog: Nov 22 22:41:58 waterhole kernel: [ 5604.108872] usb 1-6: new high-speed USB device number 9 using xhci_hcd Nov 22 22:41:58 waterhole kernel: [ 5604.272184] usb 1-6: New USB device found, idVendor=2357, idProduct=0105, bcdDevice= 1.00 Nov 22 22:41:58 waterhole kernel: [ 5604.272189] usb 1-6: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Nov 22 22:41:58 waterhole kernel: [ 5604.272193] usb 1-6: Product: WiFi Nov 22 22:41:58 waterhole kernel: [ 5604.272195] usb 1-6: Manufacturer: MediaTek Nov 22 22:41:58 waterhole kernel: [ 5604.272198] usb 1-6: SerialNumber: 1.0 Nov 22 22:41:59 waterhole kernel: [ 5604.405191] usb 1-6: reset high-speed USB device number 9 using xhci_hcd Nov 22 22:41:59 waterhole kernel: [ 5604.558249] usb 1-6: ASIC revision: 76100002 MAC revision: 76502000 Nov 22 22:41:59 waterhole kernel: [ 5604.559434] usb 1-6: firmware: direct-loading firmware mediatek/mt7610e.bin Nov 22 22:41:59 waterhole systemd[1]: NetworkManager-dispatcher.service: Succeeded. Nov 22 22:42:00 waterhole kernel: [ 5605.559757] usb 1-6: EEPROM ver:02 fae:01 Nov 22 22:42:00 waterhole kernel: [ 5605.801741] ieee80211 phy11: Selected rate control algorithm 'minstrel_ht' Nov 22 22:42:00 waterhole NetworkManager[654]: <info> [1574458920.4396] device (wlan0): driver supports Access Point (AP) mode Nov 22 22:42:00 waterhole NetworkManager[654]: <info> [1574458920.4407] manager: (wlan0): new 802.11 Wi-Fi device (/org/freedesktop/NetworkManager/Devices/13) Nov 22 22:42:00 waterhole systemd[1]: Starting Load/Save RF Kill Switch Status... Nov 22 22:42:00 waterhole mtp-probe: checking bus 1, device 9: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-6" Nov 22 22:42:00 waterhole mtp-probe: bus: 1, device: 9 was not an MTP device Nov 22 22:42:00 waterhole systemd-udevd[10423]: Using default interface naming scheme 'v243'. Nov 22 22:42:00 waterhole systemd-udevd[10423]: ethtool: autonegotiation is unset or enabled, the speed and duplex are not writable. Nov 22 22:42:00 waterhole kernel: [ 5605.860583] usb 1-6 wlxc025e96f9d55: renamed from wlan0 Nov 22 22:42:00 waterhole systemd[1]: Started Load/Save RF Kill Switch Status. Nov 22 22:42:00 waterhole NetworkManager[654]: <info> [1574458920.5049] rfkill11: found Wi-Fi radio killswitch (at /sys/devices/pci0000:00/0000:00:14.0/usb1/1-6/ieee80211/phy11/rfkill11) (driver usb) Nov 22 22:42:00 waterhole NetworkManager[654]: <info> [1574458920.5176] device (wlan0): interface index 13 renamed iface from 'wlan0' to 'wlxc025e96f9d55' Nov 22 22:42:00 waterhole NetworkManager[654]: <info> [1574458920.5274] device (wlxc025e96f9d55): state change: unmanaged -> unavailable (reason 'managed', sys-iface-state: 'external') Nov 22 22:42:00 waterhole mtp-probe: checking bus 1, device 9: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-6" Nov 22 22:42:00 waterhole mtp-probe: bus: 1, device: 9 was not an MTP device Nov 22 22:42:00 waterhole systemd-udevd[10405]: Using default interface naming scheme 'v243'. Nov 22 22:42:01 waterhole dbus-daemon[653]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service' requested by ':1.8' (uid=0 pid=654 comm="/usr/sbin/NetworkManager --no-daemon ") Nov 22 22:42:01 waterhole systemd[1]: Starting Network Manager Script Dispatcher Service... Nov 22 22:42:01 waterhole dbus-daemon[653]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher' Nov 22 22:42:01 waterhole systemd[1]: Started Network Manager Script Dispatcher Service. Nov 22 22:42:01 waterhole wpa_supplicant[664]: dbus: fill_dict_with_properties dbus_interface=fi.w1.wpa_supplicant1.Interface.P2PDevice dbus_property=P2PDeviceConfig getter failed Nov 22 22:42:01 waterhole NetworkManager[654]: <info> [1574458921.4166] sup-iface[0x56310c3b5a20,wlxc025e96f9d55]: supports 4 scan SSIDs Nov 22 22:42:01 waterhole NetworkManager[654]: <info> [1574458921.4171] device (wlxc025e96f9d55): supplicant interface state: starting -> ready Nov 22 22:42:01 waterhole NetworkManager[654]: <info> [1574458921.4172] device (wlxc025e96f9d55): state change: unavailable -> disconnected (reason 'supplicant-available', sys-iface-state: 'managed') Nov 22 22:42:03 waterhole NetworkManager[654]: <info> [1574458923.5728] policy: auto-activating connection 'Wireless2' (b7f9451b-48dc-4011-8305-649c4fd808b8) Nov 22 22:42:03 waterhole NetworkManager[654]: <info> [1574458923.5749] device (wlxc025e96f9d55): Activation: starting connection 'Wireless2' (b7f9451b-48dc-4011-8305-649c4fd808b8) Nov 22 22:42:03 waterhole NetworkManager[654]: <info> [1574458923.5753] device (wlxc025e96f9d55): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed') Nov 22 22:42:03 waterhole NetworkManager[654]: <info> [1574458923.5760] manager: NetworkManager state is now CONNECTING Nov 22 22:42:03 waterhole NetworkManager[654]: <info> [1574458923.5768] device (wlxc025e96f9d55): state change: prepare -> config (reason 'none', sys-iface-state: 'managed') Nov 22 22:42:03 waterhole NetworkManager[654]: <info> [1574458923.5774] device (wlxc025e96f9d55): Activation: (wifi) access point 'Wireless2' has security, but secrets are required. Nov 22 22:42:03 waterhole NetworkManager[654]: <info> [1574458923.5775] device (wlxc025e96f9d55): state change: config -> need-auth (reason 'none', sys-iface-state: 'managed') Nov 22 22:42:03 waterhole NetworkManager[654]: <info> [1574458923.5779] sup-iface[0x56310c3b5a20,wlxc025e96f9d55]: wps: type pbc start... Nov 22 22:42:03 waterhole NetworkManager[654]: <info> [1574458923.5810] device (wlxc025e96f9d55): state change: need-auth -> prepare (reason 'none', sys-iface-state: 'managed') Nov 22 22:42:03 waterhole NetworkManager[654]: <info> [1574458923.5819] device (wlxc025e96f9d55): state change: prepare -> config (reason 'none', sys-iface-state: 'managed') Nov 22 22:42:03 waterhole NetworkManager[654]: <info> [1574458923.5822] device (wlxc025e96f9d55): Activation: (wifi) connection 'Wireless2' has security, and secrets exist. No new secrets needed. Nov 22 22:42:03 waterhole NetworkManager[654]: <info> [1574458923.5822] Config: added 'ssid' value 'Wireless2' Nov 22 22:42:03 waterhole NetworkManager[654]: <info> [1574458923.5822] Config: added 'scan_ssid' value '1' Nov 22 22:42:03 waterhole NetworkManager[654]: <info> [1574458923.5822] Config: added 'bssid' value 'A0:64:8F:XX:XX:XX' Nov 22 22:42:03 waterhole NetworkManager[654]: <info> [1574458923.5822] Config: added 'key_mgmt' value 'WPA-PSK WPA-PSK-SHA256 FT-PSK' Nov 22 22:42:03 waterhole NetworkManager[654]: <info> [1574458923.5822] Config: added 'psk' value '<hidden>' Nov 22 22:42:03 waterhole wpa_supplicant[664]: wlxc025e96f9d55: SME: Trying to authenticate with a0:64:8f:xx:xx:xx (SSID='Wireless2' freq=5540 MHz) Nov 22 22:42:03 waterhole kernel: [ 5608.955637] wlxc025e96f9d55: authenticate with a0:64:8f:xx:xx:xx Nov 22 22:42:04 waterhole kernel: [ 5609.740546] wlxc025e96f9d55: send auth to a0:64:8f:xx:xx:xx (try 1/3) Nov 22 22:42:04 waterhole NetworkManager[654]: <info> [1574458924.3778] device (wlxc025e96f9d55): supplicant interface state: ready -> authenticating Nov 22 22:42:05 waterhole systemd[1]: systemd-rfkill.service: Succeeded. Nov 22 22:42:05 waterhole kernel: [ 5611.177191] wlxc025e96f9d55: send auth to a0:64:8f:xx:xx:xx (try 2/3) Nov 22 22:42:05 waterhole kernel: [ 5611.281011] wlxc025e96f9d55: send auth to a0:64:8f:xx:xx:xx (try 3/3) Nov 22 22:42:05 waterhole kernel: [ 5611.297500] wlxc025e96f9d55: authentication with a0:64:8f:xx:xx:xx timed out Nov 22 22:42:06 waterhole NetworkManager[654]: <info> [1574458926.3982] device (wlxc025e96f9d55): supplicant interface state: authenticating -> disconnected Nov 22 22:42:06 waterhole NetworkManager[654]: <info> [1574458926.4982] device (wlxc025e96f9d55): supplicant interface state: disconnected -> scanning Nov 22 22:42:08 waterhole wpa_supplicant[664]: wlxc025e96f9d55: SME: Trying to authenticate with a0:64:8f:xx:xx:xx (SSID='Wireless2' freq=5540 MHz) Nov 22 22:42:08 waterhole kernel: [ 5613.975020] wlxc025e96f9d55: authenticate with a0:64:8f:xx:xx:xx Nov 22 22:42:09 waterhole kernel: [ 5614.829634] wlxc025e96f9d55: send auth to a0:64:8f:xx:xx:xx (try 1/3) Nov 22 22:42:09 waterhole NetworkManager[654]: <info> [1574458929.4679] device (wlxc025e96f9d55): supplicant interface state: scanning -> authenticating Nov 22 22:42:10 waterhole kernel: [ 5616.257345] wlxc025e96f9d55: send auth to a0:64:8f:xx:xx:xx (try 2/3) Nov 22 22:42:11 waterhole kernel: [ 5616.361097] wlxc025e96f9d55: send auth to a0:64:8f:xx:xx:xx (try 3/3) Nov 22 22:42:11 waterhole kernel: [ 5616.377498] wlxc025e96f9d55: authentication with a0:64:8f:xx:xx:xx timed out Nov 22 22:42:11 waterhole NetworkManager[654]: <info> [1574458931.4867] device (wlxc025e96f9d55): supplicant interface state: authenticating -> disconnected Nov 22 22:42:11 waterhole systemd[1]: NetworkManager-dispatcher.service: Succeeded. Nov 22 22:42:11 waterhole NetworkManager[654]: <info> [1574458931.9872] device (wlxc025e96f9d55): supplicant interface state: disconnected -> scanning Nov 22 22:42:14 waterhole wpa_supplicant[664]: wlxc025e96f9d55: SME: Trying to authenticate with a0:64:8f:xx:xx:xx (SSID='Wireless2' freq=5540 MHz) Nov 22 22:42:14 waterhole kernel: [ 5619.470616] wlxc025e96f9d55: authenticate with a0:64:8f:xx:xx:xx Nov 22 22:42:14 waterhole kernel: [ 5620.337186] wlxc025e96f9d55: send auth to a0:64:8f:xx:xx:xx (try 1/3) Nov 22 22:42:14 waterhole NetworkManager[654]: <info> [1574458934.9787] device (wlxc025e96f9d55): supplicant interface state: scanning -> authenticating Nov 22 22:42:15 waterhole kernel: [ 5621.065222] wlxc025e96f9d55: send auth to a0:64:8f:xx:xx:xx (try 2/3) Nov 22 22:42:15 waterhole kernel: [ 5621.081693] wlxc025e96f9d55: send auth to a0:64:8f:xx:xx:xx (try 3/3) Nov 22 22:42:16 waterhole kernel: [ 5622.053235] wlxc025e96f9d55: authentication with a0:64:8f:xx:xx:xx timed out Nov 22 22:42:17 waterhole NetworkManager[654]: <info> [1574458937.1553] device (wlxc025e96f9d55): supplicant interface state: authenticating -> disconnected Nov 22 22:42:18 waterhole NetworkManager[654]: <info> [1574458938.1555] device (wlxc025e96f9d55): supplicant interface state: disconnected -> scanning Nov 22 22:42:20 waterhole wpa_supplicant[664]: wlxc025e96f9d55: SME: Trying to authenticate with a0:64:8f:xx:xx:xx (SSID='Wireless2' freq=5540 MHz) Nov 22 22:42:20 waterhole kernel: [ 5625.630745] wlxc025e96f9d55: authenticate with a0:64:8f:xx:xx:xx Nov 22 22:42:21 waterhole kernel: [ 5626.476389] wlxc025e96f9d55: send auth to a0:64:8f:xx:xx:xx (try 1/3) Nov 22 22:42:21 waterhole NetworkManager[654]: <info> [1574458941.1150] device (wlxc025e96f9d55): supplicant interface state: scanning -> authenticating Nov 22 22:42:21 waterhole kernel: [ 5627.045321] wlxc025e96f9d55: send auth to a0:64:8f:xx:xx:xx (try 2/3) Nov 22 22:42:21 waterhole kernel: [ 5627.065827] wlxc025e96f9d55: send auth to a0:64:8f:xx:xx:xx (try 3/3) Nov 22 22:42:22 waterhole kernel: [ 5628.069345] wlxc025e96f9d55: authentication with a0:64:8f:xx:xx:xx timed out Nov 22 22:42:23 waterhole wpa_supplicant[664]: wlxc025e96f9d55: CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="Wireless2" auth_failures=1 duration=10 reason=CONN_FAILED Nov 22 22:42:23 waterhole NetworkManager[654]: <info> [1574458943.1984] device (wlxc025e96f9d55): supplicant interface state: authenticating -> disconnected Nov 22 22:42:28 waterhole NetworkManager[654]: <info> [1574458948.2017] device (wlxc025e96f9d55): supplicant interface state: disconnected -> scanning Nov 22 22:42:28 waterhole NetworkManager[654]: <warn> [1574458948.7375] device (wlxc025e96f9d55): Activation: (wifi) association took too long, failing activation Nov 22 22:42:28 waterhole NetworkManager[654]: <info> [1574458948.7376] device (wlxc025e96f9d55): state change: config -> failed (reason 'ssid-not-found', sys-iface-state: 'managed') Nov 22 22:42:28 waterhole NetworkManager[654]: <info> [1574458948.7384] manager: NetworkManager state is now DISCONNECTED Nov 22 22:42:28 waterhole NetworkManager[654]: <warn> [1574458948.7409] device (wlxc025e96f9d55): Activation: failed for connection 'Wireless2' Nov 22 22:42:28 waterhole NetworkManager[654]: <info> [1574458948.7416] device (wlxc025e96f9d55): state change: failed -> disconnected (reason 'none', sys-iface-state: 'managed') Nov 22 22:42:28 waterhole wpa_supplicant[664]: wlxc025e96f9d55: Reject scan trigger since one is already pending Nov 22 22:42:30 waterhole NetworkManager[654]: <info> [1574458950.3320] device (wlxc025e96f9d55): supplicant interface state: scanning -> disconnected Nov 22 22:42:30 waterhole NetworkManager[654]: <info> [1574458950.3344] policy: auto-activating connection 'Wireless2' (b7f9451b-48dc-4011-8305-649c4fd808b8) Nov 22 22:42:30 waterhole NetworkManager[654]: <info> [1574458950.3370] device (wlxc025e96f9d55): Activation: starting connection 'Wireless2' (b7f9451b-48dc-4011-8305-649c4fd808b8) Nov 22 22:42:30 waterhole NetworkManager[654]: <info> [1574458950.3373] device (wlxc025e96f9d55): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed') Nov 22 22:42:30 waterhole NetworkManager[654]: <info> [1574458950.3380] manager: NetworkManager state is now CONNECTING Nov 22 22:42:30 waterhole NetworkManager[654]: <info> [1574458950.3389] device (wlxc025e96f9d55): state change: prepare -> config (reason 'none', sys-iface-state: 'managed') Nov 22 22:42:30 waterhole NetworkManager[654]: <info> [1574458950.3396] device (wlxc025e96f9d55): Activation: (wifi) access point 'Wireless2' has security, but secrets are required. Nov 22 22:42:30 waterhole NetworkManager[654]: <info> [1574458950.3396] device (wlxc025e96f9d55): state change: config -> need-auth (reason 'none', sys-iface-state: 'managed') Nov 22 22:42:30 waterhole NetworkManager[654]: <info> [1574458950.3401] sup-iface[0x56310c3b5a20,wlxc025e96f9d55]: wps: type pbc start... Nov 22 22:42:30 waterhole NetworkManager[654]: <info> [1574458950.3463] device (wlxc025e96f9d55): state change: need-auth -> prepare (reason 'none', sys-iface-state: 'managed') Nov 22 22:42:30 waterhole NetworkManager[654]: <info> [1574458950.3475] device (wlxc025e96f9d55): state change: prepare -> config (reason 'none', sys-iface-state: 'managed') Nov 22 22:42:30 waterhole NetworkManager[654]: <info> [1574458950.3481] device (wlxc025e96f9d55): Activation: (wifi) connection 'Wireless2' has security, and secrets exist. No new secrets needed. Nov 22 22:42:30 waterhole NetworkManager[654]: <info> [1574458950.3482] Config: added 'ssid' value 'Wireless2' Nov 22 22:42:30 waterhole NetworkManager[654]: <info> [1574458950.3482] Config: added 'scan_ssid' value '1' Nov 22 22:42:30 waterhole NetworkManager[654]: <info> [1574458950.3482] Config: added 'bssid' value 'A0:64:8F:XX:XX:XX' Nov 22 22:42:30 waterhole NetworkManager[654]: <info> [1574458950.3483] Config: added 'key_mgmt' value 'WPA-PSK WPA-PSK-SHA256 FT-PSK' Nov 22 22:42:30 waterhole NetworkManager[654]: <info> [1574458950.3483] Config: added 'psk' value '<hidden>' Nov 22 22:42:30 waterhole wpa_supplicant[664]: wlxc025e96f9d55: SME: Trying to authenticate with a0:64:8f:xx:xx:xx (SSID='Wireless2' freq=5540 MHz) Nov 22 22:42:30 waterhole kernel: [ 5635.734496] wlxc025e96f9d55: authenticate with a0:64:8f:xx:xx:xx Nov 22 22:42:31 waterhole NetworkManager[654]: <info> [1574458951.1987] device (wlxc025e96f9d55): supplicant interface state: disconnected -> authenticating Nov 22 22:42:31 waterhole kernel: [ 5636.561696] wlxc025e96f9d55: send auth to a0:64:8f:xx:xx:xx (try 1/3) Nov 22 22:42:32 waterhole kernel: [ 5638.098611] wlxc025e96f9d55: send auth to a0:64:8f:xx:xx:xx (try 2/3) Nov 22 22:42:33 waterhole kernel: [ 5639.077555] wlxc025e96f9d55: send auth to a0:64:8f:xx:xx:xx (try 3/3) Nov 22 22:42:33 waterhole kernel: [ 5639.094020] wlxc025e96f9d55: authentication with a0:64:8f:xx:xx:xx timed out Nov 22 22:42:34 waterhole wpa_supplicant[664]: wlxc025e96f9d55: CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="Wireless2" auth_failures=1 duration=10 reason=CONN_FAILED ... and repeats endlessly
