wired and wireless connection disables

shivani saxena · 06-30-2016, 02:33 AM

I installed Ubuntu 14.04 LTS alongside Windows 7, my ethernet connection works without problem in Windows but it doesn’t work in Ubuntu. I think the problem is related to drivers and doesn’t allow me to aquire/assign an ip adress.

My wired connection does work . My network manager tries to connect the wired connection 1 and it always returns "Disconnected " after connecting for a moment then after shows - "Disconnected you are now offline", and then it tries to connect again and the cycle repeats (Disconnected - yo are now offline).but i have'nt seen any websited loaded at this moment.
wireless is also not working .it does not even detects wifi.

Keruskerfuerst · 06-30-2016, 04:20 AM

1. Post the hardware info of the networking devices
2. lsmod on console

ardvark71 · 06-30-2016, 05:14 AM

Quote:

Originally Posted by shivani saxena

I installed Ubuntu 14.04 LTS alongside Windows 7, my ethernet connection works without problem in Windows but it doesn’t work in Ubuntu. I think the problem is related to drivers and doesn’t allow me to aquire/assign an ip adress.

My wired connection does work . My network manager tries to connect the wired connection 1 and it always returns "Disconnected " after connecting for a moment then after shows - "Disconnected you are now offline", and then it tries to connect again and the cycle repeats (Disconnected - yo are now offline).but i have'nt seen any websited loaded at this moment.
wireless is also not working .it does not even detects wifi.

Hello and welcome to the forum

In line with what Keruskerfuerst has requested, please open a terminal and post the entire results of these commands...

Code:

lspci -nnk | grep -i net -A2

Code:

lsmod

Code:

ifconfig -a

Code:

iwconfig

If this is a laptop, please also include...

Code:

rfkill list

You may need to copy and paste the results into a text file and transfer the file over to your copy of Windows 7 using a thumb drive.

Regards...

TB0ne · 07-10-2016, 10:53 AM

Quote:

Originally Posted by shivani saxena

I installed Ubuntu 14.04 LTS alongside Windows 7, my ethernet connection works without problem in Windows but it doesn’t work in Ubuntu.

Not surprising...it was released in 2014, so if you have newer hardware, it may not be supported. While installing LTS is a good thing, why did you not install the CURRENT version, 16.04, released April of 2016? What is the brand/model of the laptop you're using, and how old is it?

Quote:

I think the problem is related to drivers and doesn’t allow me to aquire/assign an ip adress.

...then how, exactly....

Quote:

My wired connection does work.

..does this occur? Either your wired connection works, or it doesn't...which is it?

Quote:

My network manager tries to connect the wired connection 1 and it always returns "Disconnected " after connecting for a moment then after shows - "Disconnected you are now offline", and then it tries to connect again and the cycle repeats (Disconnected - yo are now offline).but i have'nt seen any websited loaded at this moment. wireless is also not working .it does not even detects wifi.

You mention dual-booting. Are you COMPLETELY powering off the machine when switching between Windows and Linux? Because you may not be releasing things from Windows, before Linux tries to use them. Also, have you just tried manually configuring an address, to see what results you get?

You say nothing about your desktop environment, so we can't know what network manager you're using. If your ethernet device shows up in an "ifconfig -a", just try configuring it (as a test), with

Code:

ifconfig <device> <address> <netmask> up

, such as "ifconfig eth0 192.168.0.200 255.255.255.0 up". Pick an address high-up, well out of range of most home DHCP assignments. Typically 24 bit netmask, too. If you can THEN get out to things, you know the device is working...better to help diagnose things.