Score:0

UFW blocks wifi card

in flag

I updated my local machine from 20.04 to 22.04. After updating I struggled to log in, after entering the password, it is a black screen and a blinking cursor. Recently, I have been logging in to my local machine by doing these steps:

  1. When logging GUI appeared, I go to tty3 to enter my creds and enable ufw.
  2. Then I go to log in GUI(CTRL+ALT+F1), then enter my password, and get to the usual desktop.

I tried to investigate it, wanted to see a journal of system log. So I did journalctl -r. And I see that

[UFW BLOCK] IN=wl0...... OUT= MAC=..... SRC=.. DST... LEN=... TOS=.. PREC=... TTL=.. ID=.. DF PROTO

So I've been thinking maybe UFW somehow blocks wifi card, so I cannot normally log in.

chili555 avatar
cn flag
You can test by temporarily disbling ufw: `sudo ufw disable` Does it help? Afterwards: `sudo ufw enable`
Doug Smythies avatar
gn flag
After @chili555 s suggestion of `sudo ufw disable` you would have to re-boot. Disabling UFW doesn't flush the existing rules, but they won't re-load during boot (I tested it).
Max Maxis avatar
in flag
@chili555, Actually it does help me, I disabled ufw and rebooted it, it works fine) Thanks @chili555))))
Max Maxis avatar
in flag
As far as I understand, I need to keep it disabled, every time when I power off the machine @chili555
chili555 avatar
cn flag
I think ufw should always be enabled. You should check the log to try to find out why ufw conflicts with normal login. My suggestion was *not* to fix the problem by de-escalating security, but to establish with some certainly, that ufw is a contributor to the login issue.
Max Maxis avatar
in flag
@chili555, I am still trying to find a better solution for the case
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