Cant connect to wlan0 wifi

[jeiipi]

Well I am trying to connect to wlan0 wireless but it failed

it said: 'network connection activation failed' and the wifi logo with dots appears

I try to restart network manager
The wlan0 appear DOWN and try to Up with ip link set wlan0 up but doesnt work
If someone can help me

 

[arochester]

It might not be called wlan0, it changed a few years ago.

What do you get if you use the command: ip link

 

[jeiipi]

When I put
ip a s, i can see eth0 and wlan0 like this
as you see it is down but I dont know how to up the device
i try this :

and another tips of videos about dowload driver

 

[arochester]

What happens is you do the command: ip link set wlan0 up
(It might need sudo)

 

[jeiipi]

What happens is you do the command: ip link set wlan0 up
(It might need sudo)

I try it several times but it doesnt work,
I did update and upgrate too
It could be something with the drivers?
I have a tp link tl-wn8200nd

If put down/up eth0 its work but not with wlan0

if I put iwconfig I can see wlan0

 

[z7vl7abxc]

it said: 'network connection activation failed' and the wifi logo with dots appears

you could try running

journalctl -f

before trying the network activation to see if you get any kind of helpful warning or error messages after doing so. similarly you could try unplugging the adapter, running

dmesg -w

and then plugging the adapter back in. fair warning: dmesg produces a lot of output. in this instance you only need to concern yourself with the output after plugging the adapter back in. again you would be looking for any errors or warnings that you could run a web search for to see if there are any solutions.

 

[ghostanon]

what is your ifconfig output