[SOLVED] Wlan adapter problems

klon2508 · 2019-08-17 14:21:05

Hello everyone,

I recently started using Arch on my laptop and I love it so far. Now that I've switched to Arch on my tower as well, my wlan adapter (SoataSoa AC1200 USB Wifi Dongle 802.11 ac/n/g/b/a Wire) causes me problems. I have installed this driver (rtl88x2bu) and the stick is detected successfully. However, when I establish a connection using the NetworkManager, I'm stuck in a loop where I'm asked to authenticate the network after a short delay. Since I am a beginner, I don't know where the problem comes from or how to describe it in detail.

Some detail about the adapter: lsusb

Here are the logs after I rebooted, tried to connect, re-entered the password, and was asked shortly after to re-enter the password:

dmesg | grep 88x2bu
[    4.349987] 88x2bu: loading out-of-tree module taints kernel.
[    4.361526] 88x2bu: module verification failed: signature and/or required key missing - tainting kernel
[    4.567068] RTW: rtl88x2bu v5.3.1_27678.20180430_COEX20180427-5959
[    4.567069] RTW: rtl88x2bu BT-Coex version = COEX20180427-5959
[   19.740638] usbcore: registered new interface driver rtl88x2bu
[   19.744202] rtl88x2bu 1-3:1.0 wlp2s0f0u3: renamed from wlan0

dmesg | grep wlp2s0f0u3

sudo dmesg | grep -Ei 'error|segf|fail|broke|warn|dump|denied|firm|qos|oops|bug|regdom|wmi|rtl|wl|ath|b43|bcm|brcm|eth|enp|r816|blue|deauth' | grep -viE 'acpi|ras'

journalctl | grep wlp2s0f0u3

On my laptop the wlan adapter works with the same driver and the same Arch installation. I'm pretty helpless right now and really thankful for any help!

Last edited by klon2508 (2019-08-17 21:32:51)

seth · 2019-08-17 14:43:46

Please paste the entire output of "sudo journalctl -b", not some random string filter - notably since the problem might be somewhere in NM or its sub-processes and less w/ the kernel.

However:

Aug 17 14:25:58 tower wpa_supplicant[1215]: wlp2s0f0u3: CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="FRITZ!Box 7560 TU" auth_failures=1 duration=10 reason=WRONG_KEY
Aug 17 14:25:58 tower wpa_supplicant[1215]: wlp2s0f0u3: CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="FRITZ!Box 7560 TU" auth_failures=2 duration=20 reason=CONN_FAILED

You simply seem to enter the wrong PW, possibly a keyboard misconfiguration?

klon2508 · 2019-08-17 15:03:55

Here is the complete output of sudo journalctl -b

The password consists only of numbers and I have checked several times that I have entered them correctly. If there isn't some pitfall I don't know about, I doubt the password is wrong.

loqs · 2019-08-17 15:39:05

You could try switching from NetworkManager to wpa_supplicant though I doubt it will make a difference as NetworkManager calls wpa_supplicant which is reporting WRONG_KEY.

seth · 2019-08-17 15:45:16

Could be a guesstimate since the router seems to not respond during the handshake.

a) Did you setup a mac filter in the router?
https://wiki.archlinux.org/index.php/Ne … domization

b) disable USB suspension, https://wiki.archlinux.org/index.php/Po … utosuspend

c) try WPS (to avoid typo-issues) or an unprotected network (just to see whether the connection can be established at all) - how safe that is depends on the hostility of your environment. If you live an a suburb and the only other SSIDs are the ones of your retired neighbours, there's virtually no risk in a short term open WLAN.

klon2508 · 2019-08-17 21:32:35

Thank you all for your advice!

I feel like a noob, but for documentation, what solved the problem for me was finding a comment in a search for usb vendor and product id that the driver rtl88x2bu-cilynx-dkms-git works. I installed it instead of rtl88x2bu-dkms-git and now everything works.

Arch Linux

#1 2019-08-17 14:21:05

[SOLVED] Wlan adapter problems

#2 2019-08-17 14:43:46

Re: [SOLVED] Wlan adapter problems

#3 2019-08-17 15:03:55

Re: [SOLVED] Wlan adapter problems

#4 2019-08-17 15:39:05

Re: [SOLVED] Wlan adapter problems

#5 2019-08-17 15:45:16

Re: [SOLVED] Wlan adapter problems

#6 2019-08-17 21:32:35

Re: [SOLVED] Wlan adapter problems

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