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[solved] USB wifi adpater not working
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Reiner6
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PostPosted: Fri Aug 19, 2016 12:41 am    Post subject: [solved] USB wifi adpater not working Reply with quote

I have an old laptop i installed gentoo to, now im trying to make the wifi work, and i got it a wifi usb adapter, i tried working with it using iwconfig commands, but with no results; mostly i think because my network has a wpa2 protection, can anyone help me solve this?
thanks in advance :D


Last edited by Reiner6 on Fri Aug 26, 2016 3:48 am; edited 1 time in total
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Logicien
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PostPosted: Fri Aug 19, 2016 12:57 am    Post subject: Reply with quote

Assuming that the wireless Usb adapter is already working, I mean commands like
Code:
ifconfig wlan0 up
iwlist wlan0 scan | less

return access points available and the one you want to connect to. You need first to associate your wireless card to the access point. Suppose you create a simple wpa_supplicant.conf like this
Code:
wpa_passphrase access-point passphrase > /root/wpa_supplicant.conf


Replace access-point and passphrase with the good information. Than you start wpa_supplicant like this for testing
Code:
 wpa_supplicant -c /root/wpa_supplicant.conf -D nl80211,wext -i wlan0

Than, after a pause, you check if you are associated with the access point
Code:
iwconfig wlan0

If yes, than
Code:
dhcpcd wlan0

To get an Ip configuration from the dhcp server. Try to surf. This can be ameliorate but may work from the beginning after adapting (change wlan0 with the real wireless name interface). Than you can setup a boot script to do the same.
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ian.au
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PostPosted: Fri Aug 19, 2016 1:10 am    Post subject: Re: USB wifi adpater not working Reply with quote

Reiner6 wrote:
I have an old laptop i installed gentoo to, now im trying to make the wifi work, and i got it a wifi usb adapter, i tried working with it using iwconfig commands, but with no results; mostly i think because my network has a wpa2 protection, can anyone help me solve this?
thanks in advance :D

If you want meaningful help you need to be a bit more specific, ie. what is the hardware - the output of
Code:
lsusb
- you may need to
Code:
emerge -a usbutils
if not already installed.

You may need additional kernel options, firmware etc.. depending on the device. Have you tried to work through https://wiki.gentoo.org/wiki/Wifi if so, include what you did and how far you got - do you have a wireless device listed if you run:
Code:
ip a
For wpa2 you need wpa_supplicant installed.
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Reiner6
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PostPosted: Fri Aug 19, 2016 2:58 am    Post subject: Reply with quote

Logicien wrote:

Replace access-point and passphrase with the good information. Than you start wpa_supplicant like this for testing
Code:
 wpa_supplicant -c /root/wpa_supplicant.conf -D nl80211,wext -i wlan0



I tried this and i got
Code:
Successfully initialized wpa_supplicant
ioctl[SIOCSIWENCODEEXT]: Invalid argument
ioctl[SIOCSIWENCODEEXT]: Invalid argument
ioctl[SIOCSIWSCAN]: Device or resource busy
wlan0: CTRL-EVENT-SCAN-FAILED ret=-1 retry1


and got stuck there, im guessing thats not a good thing


ian.au

lsusb tells me this

Code:
148f:5370 Ralink Technology, Corp. RT5370 Wireless Adapter
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ian.au
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PostPosted: Fri Aug 19, 2016 4:47 am    Post subject: Reply with quote

Reiner6 wrote:
Logicien wrote:

Replace access-point and passphrase with the good information. Than you start wpa_supplicant like this for testing
Code:
 wpa_supplicant -c /root/wpa_supplicant.conf -D nl80211,wext -i wlan0



I tried this and i got
Code:
Successfully initialized wpa_supplicant
ioctl[SIOCSIWENCODEEXT]: Invalid argument
ioctl[SIOCSIWENCODEEXT]: Invalid argument
ioctl[SIOCSIWSCAN]: Device or resource busy
wlan0: CTRL-EVENT-SCAN-FAILED ret=-1 retry1


and got stuck there, im guessing thats not a good thing


ian.au

lsusb tells me this

Code:
148f:5370 Ralink Technology, Corp. RT5370 Wireless Adapter


This is a systemd install, right? If setup with NetworkManager there might already have been a wpa_supplicant process running, which would give that error, what does
Code:
systemctl status wpa_supplicant
return? If your credentials in /etc/wpa_supplicant/wpa_supplicant.conf are correct it should just work, you do have to restart wpa_supplicant after you entered the config strings in /etc/conf.d.net and /etc/wpa_supplicant/wpa_supplicant.conf per the wiki ie
Code:
systemctl restart wpa_supplicant

Unfortunately I don't have a system with this running at the moment and it's been some time since I set it up, but from memory provided you have a device listed to connect to
Code:
ip a
, an entry in /etc/conf.d/net and correct passphrase in /etc/wpa_supplicant/wpa_supplicant.conf, that should be all that is required.
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NeddySeagoon
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PostPosted: Fri Aug 19, 2016 7:12 pm    Post subject: Reply with quote

Reiner6,

Post your dmesg on a pastebin site please.
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Reiner6
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PostPosted: Fri Aug 26, 2016 3:47 am    Post subject: Reply with quote

A friend ended up helping me with NetworkManager, it solved everything
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