0

I have installed Ubuntu 17. 10 on my Dell 1555 laptop. It used to work in earlier version of Ubuntu.

I am able to see WiFi connections. But connecting is an issue.

Please let me know if I need to post any logs.

update Please find the log for wireless in the below link https://paste.ubuntu.com/26498339/

Fazil Abdul Lathif
  • 31
  • Please see https://askubuntu.com/a/425205/300665 and edit the question to add results. You may need to paste the contents of the wireless-info.txt file at paste.ubuntu.com and post the URL – Jeremy31 Jan 31 '18 at 22:47
  • I have updated the question with the link to paste.ubuntu.com – Fazil Abdul Lathif Feb 01 '18 at 02:14

1 Answers1

0

I assume this is your router or access point:

Address: <MAC 'virginmedia2835376' [AC1]>
                    Channel:11
                    Frequency:2.462 GHz (Channel 11)
                    Quality=56/70  Signal level=-54 dBm  
                    Encryption key:on
                    ESSID:"virginmedia2835376"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
                              24 Mb/s; 36 Mb/s; 54 Mb/s
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
                    Mode:Master
                    Extra:tsf=0000001de0638191
                    Extra: Last beacon: 2840ms ago
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK

First, check the settings in the router. WPA2-AES is preferred; not any WPA and WPA2 mixed mode and certainly not TKIP. Second, if your router is capable of N speeds, you may have better connectivity with a channel width of 20 MHz in the 2.4 GHz band instead of automatic 20/40 MHz, although it is likely to affect N speeds. I also have better luck with a fixed channel, either 1, 6 or 11, rather than automatic channel selection. Also, be certain the router is not set to use N speeds only; auto B, G and N is preferred. After making these changes, reboot the router.

Next, I recommend that your regulatory domain be set explicitly. Check yours:

sudo iw reg get

If you get 00, that is a one-size-maybe-fits-all setting. Find yours here: http://en.wikipedia.org/wiki/ISO_3166-1_alpha-2 Then set it temporarily:

sudo iw reg set IS

Of course, substitute your country code if not Iceland. Set it permanently:

sudo nano /etc/default/crda

Change the last line to read:

REGDOMAIN=IS

Proofread carefully, save and close the text editor.

Reboot the computer and the router and let us hear if there is any improvement.

chili555
  • 60,188