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I have a rasPi-2B, and when I successfully set up the wpa_supplicant.conf file when I was at my house at my college. But, now that I am home for for spring break, I can't get the wifi to work in the same way.

The router here does not have a password set up, so I tried editing the wpa file to have the ssid= the ssid and I had the psk="". That did not work, so I tried psk=, which did not work either. I am unsure what to try.

I also was unsure if the space in the ssid is the issue, if I am supposed to place underscores in the spaces.

EDIT: the content of my interfaces file->

auto wlan
iface wlan inet dhcp
    wireless-essid My SS ID


auto lo

iface lo inet loopback
iface eth0 inet dhcp

allow-hotplug wlan0
iface wlan0 inet manual
wpa-roam /etc/wpa_supplicant/wpa_supplicant.conf
iface default inet dhcp
gangwerz
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  • If the network is unencrypted don't use `wpa_supplicant` at all. – goldilocks Mar 22 '15 at 12:01
  • @goldilocks how do I set it up to auto connect to my router without wpa-supplicant – gangwerz Mar 22 '15 at 16:18
  • I've added an answer, but if you want to manual configure it for both networks (home and school) you should ask how to do that on [Unix & Linux](http://unix.stackexchange.com/). – goldilocks Mar 22 '15 at 17:00

2 Answers2

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I don't use the normal configuration methods, but based on this it looks like you want an entry like this in /etc/network/interfaces:

auto wlan0
iface wlan0 inet dhcp
        wireless-essid YOUR_SSID_GOES_HERE

Of course, you probably want to keep the existing listing you have for school -- have a look at this Q&A, which is slightly different but similar circumstances. One of the answers also suggests the use of wicd-curses, which might make all this easier.

If you just want to try to connect temporarily, you could use my method here but use iwconfig instread of wpa_supplicant:

service NetworkManager stop
ip link set wlan0 up
iwconfig wlan0 essid YOUR_ESSID
dhclient -v wlan0

All that has to be done sudo.

Community
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goldilocks
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  • I tried this, but I still cannot connect – gangwerz Mar 22 '15 at 21:38
  • My SSID is three words, with spaces. I don't know if this would effect how I enter it. – gangwerz Mar 22 '15 at 21:39
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    try surrounding ESSID with single quotation marks or double quotation marks. 'name of AP' or "name of AP" If that doesn't work, there are some other possible ways to encode a space but I'm not sure what iwconfig will accept. – Tommy Trussell Mar 24 '15 at 14:20
  • Sorry, I missed that yesterday. You can also pass spaces this way: `one\ two\ three` but `"one two three"` should be fine. – goldilocks Mar 24 '15 at 14:25
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I always start x and just use wpa_gui.

Zachster1996
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    Unlikely to work if the network does not use WPA encryption, which requires a password. Hence, if this is a network with no password -- as described in the question -- it is not WPA encrypted. – goldilocks May 02 '15 at 12:51