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jamesbb

Member

Registered: 2013-06-22

Posts: 2

USB Wireless

Hiya

I'm having trouble getting my USB wireless card to connect, and was wondering if someone might be able to help

lsusb tells me the card is:

"Bus 003 Device 002: ID 7392:7811 Edimax Technology Co., Ltd EW-7811Un 802.11n Wireless Adapter [Realtek RTL8188CUS]"

After searching the forums, it seems as though the Realtek driver rtl8192cu is the correct driver. So I've run modprobe rtl8192cu and can now see the interface with ip link.

When I try to connect to my home wifi I'm getting a pretty generic error, and I'm not sure how to get any additional information.

$ sudo netctl start home-wifi
Job for netctl@home\x2dwifi.service failed. See 'systemctl status netctl@home\x2dwifi.service' and 'journalctl -xn' for details.

$ sudo journalctl -xn

(see PasteBin)

The first error seems to say association/authentication failed. Oddly, if I change the interface in the netctl profile to that of the internal wifi card in my laptop, it connects fine.

Does anyone have any ideas? Or is there a way of eliciting more information from netctl?

Thanks!

Trilby

Inspector Parrot

Registered: 2011-11-29

Posts: 29,556

Website

Re: USB Wireless

Pardon my ignorance of netctl, I've never used it (it seems overly complex for no purpose).  But this "home-wifi" is a profile you created, right?  If so, what is in it??

Why is it odd that it only works if you change the interface to match your actually match your hardware?  Isn't this normal/expected?  Doesn't this solve the problem?  EDIT: sorry, I read too quickly: I missed that you are comparing two different wireless cards.

Last edited by Trilby (2013-06-22 14:02:09)

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"UNIX is simple and coherent..." - Dennis Ritchie, "GNU's Not UNIX" -  Richard Stallman

Gusar

Member

Registered: 2009-08-25

Posts: 3,605

Re: USB Wireless

Driver bug. It'll be fixed in the next kernel. Until then, you can compile your own kernel with the fix: http://www.spinics.net/lists/linux-wire … 08645.html

jamesbb

Member

Registered: 2013-06-22

Posts: 2

Re: USB Wireless

Thanks for the fast reply!

I'll give that patch a try.