Raspberrypi 2

Never mind all this graphical nonsense that hides scary things from you. Get yourself a root shell, then this stuff can be fixed.

ifconfig wlan0

will either give "error fetching interface information: Device not found" or some information on what the wireless network interface thinks it's doing. If you get the latter, you're fine on the driver front. (There's very little difference between Linux versions in terms of required drivers - this isn't Windows.)

If you have a viable wlan0 you can use the technique from a blog post I wrote last year:

(I think the Pi prefers /etc/wpa/wpa_supplicant.conf rather than the /etc/wpa_supplicant.conf that I used there.)

THIS GIVES ME 6 lines of info re Tx and Rx. Now to look at your blog

Thanks Roger

Well I have tried that without any success. Two things, there is already quite a few entries in wpa_supplicant.conf which may be muddying the water and if I try 'ip addr' the message 'NO CARRIER BROADCAST' occurs for both eth0 and wlan0. I am supposed to be using a static address but no address is shown

Malcolm

On 29/02/2016 21:26, T M Smith wrote: []

You could try the latest OS - Jessie. I never could get the graphical setup for Wi-Fi to work on Wheezy, but trying with an RPi 2 and Jessie the graphical setup worked straight away.

I am using Jessie and having no success establishing a wireless connection to the internet. Are there any checks I could carry out to see if there is a problem with the board. The donngle works OK on a Pi B+

Malcolm Smith

Please post the result of running:

/sbin/ifconfig wlan0

Run out of time tonight but will do that tomorrow evening.

Wow! Thunderbird really screwed this one up. I'm having trouble with my Internet connection and Tbird put a message from another group into this group (sci.electronics.design). But notice the subject line is from the thread in sci.electronics.design and does not match the message from comp.sys.raspberry-pi. Then on top of that it attributed the message to the person in this group.

WTF!

Just accept it. Computers hate you.

If it makes you feel any better they hate me too :(

I have also found that iwconfig is a good tool to use diagnosing recalcitrant wifi hardware.

iw config wlan0 Link encap:Ethernet HWaddr c8:3a:35:c0:16:d1 UPBROADCAST MULTI CAST MTU:1500 Metric 1 Rx packets:0 errors:0 dropped:0 overruns:0 frame:0 Tx packets:0 errors:0 dropped :0 overruns:0 carrier:0 collisions:0 txqueuelen: 1000 Rx bytes:0 (0.0 B) Tx bytes:0 (0.0 B)

iw wlan0 Interface wlan0 ifindex 3 wdev 0x1 addr c8:3a:35:c0:16:d1 type managed wiphy 0

Malcolm

Which Dongle? There were some notes to the effect that some don't work! I've even had this problem with Win 7 and run of the mill PCs!

Both my dongles are Tenda, with no other markings

After further invesigation :- SMSC 9512/9514 Fast EthernetAdapter

That's the USB hub and wired ethernet controller and not a Wifi dongle.

How about :- Ralink technology RT5370 Wireless adaptor. It is shown as installed but it does not appear to be working.

Can anyone give me a type that does work with Pi2

Malcolm

The RT5370 works fine. It's your setup that is wrong.

Start again with a fresh Raspbian Jessie install with nothing from before.

Plug in the ethernet and check that works. Update and upgrade to get the latest fixes installed from the repos. Check you have the Ralink irmware in case it is not included in Jessie by default.

At this point Wifi should be working but not connecting to anything. Then follow this guide:

At this point you should have basic Wifi.

Thankyou MM. I followed your instructions to the letter and the final outcome was as you said. Not sure where I had gone wrong earlier. I was even using the same Modmypi script. Now I can mmove on. Thanks again

Malcolm Smith

That almost sounds like a MCSE solution. :-\