WNDA 4100 (NetGear N900) Wireless Dual Band USB Adapter

[chili555]

That is fantastic, I got the 3573 driver and added the line you mentioned and it's up now!

But, it isn't connecting to the router. It gets a Mac address for the AP, but never gets an ip address. Is this probably an authentication problem?

I'm using WPA2PSK security mode in the rt2870sta.dat configuration file, should I be using WPA2 + wpa supplicant instead? How do I know when to use wpa supplicant?

Thanks so much for your help

Did you make this change in config.mk?

3> In os/linux/config.mk
<snip>
** Build for being controlled by NetworkManager or wpa_supplicant wext functions
Please set 'HAS_WPA_SUPPLICANT=y' and 'HAS_NATIVE_WPA_SUPPLICANT_SUPPORT=y'.

If not, please do and recompile:

sudo su
make clean
make
make install
modprobe -r rt3573sta
modprobe rt3573sta
exit

[ericosaurus]

Yes, I had both of those set to "y".

That means I don't need wpa_supplicant, correct?

[chili555]

You only 'need' wpa_supplicant if you intend to connect to an encrypted network. Ihope and assume yours is. Why do you ask, have you manipulated wpa_supplicant settings in some way?

Are there any informative messages here?

dmesg | grep -i rt2
dmesg | grep -e rt5 -e wlan

[ericosaurus]

I have success!

I didn't realize that the wpa_supplicant was required always, that flag that I set to yes that said "HAS_NATIVE_WPA_SUPPLICANT_SUPPORT" made me think it was included in the something native to the OS.

Anyways, I was looking over the documentation from ralink carefully and saw the line giving the command to connect using wpa_supplicant, and that worked perfectly.

Sorry to have hijacked the thread, but hopefully my experience can help the OP too.

thanks very much chili!

[eNiNjA]

Yep, can confirm this works.

Thanks Chili!

[b00n utnubu]

Today has been filled with a whole spectrum of emotions for me in regards to my switching from Windows 7 to Ubuntu 12.04...

First was excitement, as I was excited to get off the corporate OS bandwagon...

Then came the nerves, as I had no clue how to use the command line (which is obviously a necessity)

Then came the frustration, as I couldn't get my wireless adapter (same as OP) to work

Then I found this thread and the extremely helpful answers by chili555 and my emotions did a complete 180!

I now have my Netgear N900 WNDA4100 wireless adapter working perfectly in Ubuntu 12.04, and I'm a complete n00b! lol

Thank you very much chili555!!!

[chili555]

Glad it's working! Have fun!

[cecilieaux]

Glad it's working! Have fun!

I've gone through this and can't find a clear list of steps to get to where b00n utnubu arrived. I there any way you could summarize what was done, so I could do it?

[chili555]

I've gone through this and can't find a clear list of steps to get to where b00n utnubu arrived. I there any way you could summarize what was done, so I could do it?

Before we proceed, let's verify what you have. Please run and post:

lsusb

[cecilieaux]

I guess you're interested in the line

Bus 001 Device 004 0846:9012 NetGear, Inc.

Had to copy this on a Windows computer since I can't connect using my ubuntu 12.04 LTS.