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I just downloaded Ubuntu and am trying to get my WiFi set up. I tried researching this but could not find anything for 17.04.

When I put it into the USB drive, it popped right up showing available networks. It tried to connect for a minute and then says disconnected. I just connected on another laptop so I know there's not an issue with the connection or my password...

Do I need to download/install any drivers even though it was immediately showing my wifi network?

I ran network diagnostics and here are the results: http://paste.ubuntu.com/25343050/

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  • Make sure power management is disabled for this wireless device (check with iwconfig command), and make sure that your router is set for WPA2-AES.
    – heynnema
    Aug 19, 2017 at 0:14
  • same - link to answered question . solved by same @chilli555
    – guyd
    Aug 20, 2017 at 12:36

1 Answer 1

Reset to default
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Please check to see if two possibly conflicting drivers are loaded:

lsmod | grep rtl

If you find that both rtl8192cu and rtl8xxxu are loaded, then blacklist one:

sudo -i
echo "blacklist rtl8192cu"  >>  /etc/modprobe.d/blacklist.conf
exit

You will also need a change to Network Manager:

sudo nano /etc/NetworkManager/NetworkManager.conf

Add a new section as follows:

[device]
wifi.scan-rand-mac-address=no

Proofread carefully, save and close the text editor.

After making these changes, reboot and let us hear the result.

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  • I ran the "lsmod | grep rtl" command, and it seems like something funny is going on. Here is the yield: "~$ lsmod | grep rtl rtl8xxxu 126976 0 rtl8192cu 65536 0 rtl_usb 20480 1 rtl8192cu rtl8192c_common 49152 1 rtl8192cu rtlwifi 73728 3 rtl_usb,rtl8192c_common,rtl8192cu mac80211 782336 4 rtl_usb,rtlwifi,rtl8192cu,rtl8xxxu cfg80211 602112 2 mac80211,rtlwifi"
    – vince
    Aug 19, 2017 at 1:21
  • You have found that both are loaded and conflicting. Please proceed.
    – chili555
    Aug 19, 2017 at 1:29
  • Sorry I am still very new to linux, and am having trouble understanding how to add a new section in network manager. I have the manager opened up and I have entered the following: "[Realtek RTL8188CUS]wifi.scan-rand-mac-address=no ", but I don't understand the menu controls that are listed on the bottom of the command prompt(which one I need to select and how to select them. I'm not sure how I am supposed to enter "^X" for exit, as an example...
    – vince
    Aug 19, 2017 at 1:56
  • NO! It is exactly as I wrote it. [device] and then on the next line down: wifi.scan-rand-mac-address=no You enter ^X with Ctrl+x. Before you do that, however, be sure to Write Out, meaning to save, the change you made with ^O, entered as Ctrl+o.
    – chili555
    Aug 19, 2017 at 2:01
  • IT WORKED! Thanks man you are awesome. I wish I had your computer knowledge...maybe someday lol
    – vince
    Aug 19, 2017 at 2:11

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