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Old 01-25-2017, 10:19 AM   #1
summit
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Problem in enabling wifi


Dear Friends,
Greetings!

I have dual boot (Windows 10 and Ubuntu 16.04). In windows, wifi and internet is working well but in ubuntu, wifi is not enabled and I am not able to connect it with internet. I have also tried with Live usb ubuntu and reinstalling of ubuntu in laptop.

Anybody have any solution to enable wifi so that I can use internet.

Thanks.
Best regards,

Summit
 
Old 01-25-2017, 10:36 AM   #2
summit
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here is the screenshot
Attached Thumbnails
Click image for larger version

Name:	IMG_2285.JPG
Views:	30
Size:	37.4 KB
ID:	24052  

Last edited by summit; 01-25-2017 at 10:37 AM.
 
Old 01-25-2017, 11:01 AM   #3
beachboy2
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summit,

Open a Terminal and type these commands separately, pressing enter after each one:

Code:
ifconfig

sudo lshw -C network

sudo rfkill list
Post the output in CODE (#) tags (above text box).
 
Old 01-25-2017, 11:01 AM   #4
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We need to know a lot more about your set-up in order to help.

1) What wifi card do you have? You can find out quickly by opening a terminal and typing lspci.

2) Has the kernel recognised your card and loaded the correct driver for it? The dmesg command will list all the kernel's boot-up messages but it's a big list and network cards are usually recognised right at the end. That's the bit of the output you need to check. Post the relevant lines here.

3) If the card has been recognised, has the interface actually come up? Look in /sys/class/net or run ifconfig as suggested above. There should be an interface with a name beginning with w: it might be wlan0 or something like wl1p25s.

4) If the interface is up, the problem lies between it and your wifi router. We shall need to know what networking software you are using (NetworkManager? Wicd? Something else?)

Once you know where in this sequence the blockage is occurring, we can start to help you fix it.
 
Old 01-25-2017, 11:40 AM   #5
summit
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Output of ifconfig
Attached Thumbnails
Click image for larger version

Name:	IMG_2289.JPG
Views:	28
Size:	125.9 KB
ID:	24053  
 
Old 01-25-2017, 11:48 AM   #6
hazel
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So you've got an ethernet interface but no wifi interface. This probably means that the failure is at step 2. You still haven't told us what card you have. Find that out and then look at the end of dmesg as suggested to find out what the kernel has made of your card.

A common cause of this sort of problem is cards like the Broadcom ones, which require firmware to load before they can be used. Fortunately the kernel is very informative about such problems and will tell you if it was asked to load firmware and couldn't find it.
 
Old 01-25-2017, 02:16 PM   #7
ardvark71
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Quote:
Originally Posted by summit View Post
Anybody have any solution to enable wifi so that I can use internet.
Hi...

We still need more information concerning your wireless adapter. If you can, please connect an ethernet cable from your modem/router (to establish an internet connection,) then open a terminal and enter these commands...

Code:
wget -N -t 5 -T 10 https://github.com/UbuntuForums/wireless-info/raw/master/wireless-info && \
chmod +x wireless-info && \
./wireless-info
Then post the results (or a link to them) in your next reply. If you are unable to use an ethernet cable, you can either transfer the information using a thumb drive or you can post screenshots of the results of these commands...

Code:
lspci -nnk | grep -i net -A2
Code:
iwconfig
Code:
lsmod
If this is a laptop, please also include the results of...

Code:
rfkill list
If you are using a USB adapter, please include these results...

Code:
lsusb
Thanks!

Last edited by ardvark71; 01-25-2017 at 02:17 PM. Reason: Added wordage.
 
Old 01-25-2017, 02:38 PM   #8
beachboy2
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summit,

This LQ "sticky" on Broadcom wifi should help:

http://www.linuxquestions.org/questi...ux-4175434970/
 
2 members found this post helpful.
Old 01-25-2017, 03:07 PM   #9
ardvark71
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Quote:
Originally Posted by beachboy2 View Post
summit,

This LQ "sticky" on Broadcom wifi should help:

http://www.linuxquestions.org/questi...ux-4175434970/
Hi...

We don't even know if the OP has a broadcom adapter yet, unless I missed something.

Regards...
 
Old 01-25-2017, 07:21 PM   #10
Shadow_7
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$ sudo ifconfig -a

If that doesn't show one that starts with w, then your wifi driver is not preset or not working. You could be missing some firmware or other things.

$ dmesg | grep -i firmware

Otherwise to verify the existance of the hardware.

$ lspci -nnk

$ lsusb
 
Old 01-25-2017, 07:23 PM   #11
Shadow_7
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Also, you can pipe the output to file which you can cut and paste instead of taking screen shots / pictures. Albeit hard to post to the internet without an internet connection.

$ lspci -nnk 2>&1 | tee output.log
 
Old 01-26-2017, 12:52 PM   #12
TB0ne
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Quote:
Originally Posted by summit View Post
Dear Friends,

I have dual boot (Windows 10 and Ubuntu 16.04). In windows, wifi and internet is working well but in ubuntu, wifi is not enabled and I am not able to connect it with internet. I have also tried with Live usb ubuntu and reinstalling of ubuntu in laptop.

Anybody have any solution to enable wifi so that I can use internet.
Similar to the thread you opened months ago, where you were asked numerous times for details/information, but didn't provide much.

If it's the same laptop as mentioned there, you have an Intel wifi card, probably with the integrated bluetooth. Numerous solutions exist:
http://askubuntu.com/questions/82779...s-card-to-work
https://help.ubuntu.com/community/Wi...CardsSupported
https://help.ubuntu.com/stable/ubunt...are-check.html
 
Old 01-26-2017, 06:53 PM   #13
Brains
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And...
CLEAN YOUR ROOM!
It'll help with concentration. Make the bed also, helps remove tension which leads to better focus.
 
Old 01-27-2017, 06:42 AM   #14
rtmistler
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I think there's good advice earlier in this thread asking for the PCI status to determine what, if any WIFI adapter the system has.

At this point it's best to let the OP answer and also to stay on topic if there are any further replies.
 
Old 02-05-2017, 03:13 AM   #15
summit
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Question

Dear Friends,

Sorry for inconvenience. I was not able to access internet so I was sending screen shots from my phone but some how someone don't like this so I have no other option to send all this.

I have made a text file and please find the attachment. All of you have tried to help me. Now, I have copy paste the output of the commands which was asked above.

Again extremely sorry friends.

Thanks.
With best regards,
Summit.
Attached Files
File Type: txt file1.txt (67.0 KB, 10 views)
 
  


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