# LAN connection problem
**URL:** https://support.blue-systems.com/t/lan-connection-problem/5206
**Category:** Netrunner 20.01
**Created:** [September 19, 2021, 1:18am UTC](https://support.blue-systems.com/t/lan-connection-problem/5206 "2021-09-19T01:18:30Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@unagi](https://support.blue-systems.com/u/unagi)
#### Post date: [September 19, 2021, 1:18am UTC](https://support.blue-systems.com/t/lan-connection-problem/5206/1 "2021-09-19T01:18:30Z")
Good time of day to you kind people.
I started having problems with my LAN connection. It’s a backup lenovo machine and everything was working swimmingly until I tried upgrading my wifi card. Turns out this model only supports certain kind of wireless modules and to use any other outside the list I have to change refirm bios and etc.
Long story short. After removing it altogether and going for an external wifi module I just decided to use hardwired connection and manually install the driver since there isn’t one for Linux separately.
When I plug in the cable it doesn’t detect the connection. lspci lists my card fine. When I do the same on windows, there is no issue. When I boot into live distro there is no issue.
Don’t really know what is it.
Any advice?
Thank you,
Unagi.
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### Author:  [@proxo](https://support.blue-systems.com/u/proxo)
#### Post date: [September 19, 2021, 9:25pm UTC](https://support.blue-systems.com/t/lan-connection-problem/5206/2 "2021-09-19T21:25:39Z")
Using the bash with:
inxi -n
gives you some more information, whether any and witch driver is used or not.
Helpful sometimes.
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### Author:  [@leszek](https://support.blue-systems.com/u/leszek)
#### Post date: [September 20, 2021, 7:48am UTC](https://support.blue-systems.com/t/lan-connection-problem/5206/3 "2021-09-20T07:48:46Z")
Can you go into the networkmanager and see if there is a configuration for your card? If not try to create one.
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### Author:  [@unagi](https://support.blue-systems.com/u/unagi)
#### Post date: [September 21, 2021, 8:44pm UTC](https://support.blue-systems.com/t/lan-connection-problem/5206/5 "2021-09-21T20:44:05Z")
inxi -n output:
Network: Device-1: Intel 82577LM Gigabit Network driver: e1000e
IF: enp0s25 state: down mac: 5c:ff:35:0e:a3:cc
But like I said lspci does detect ethernet module fine. It’s the wifi card. Was working fine and then… something happened.
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### Author:  [@unagi](https://support.blue-systems.com/u/unagi)
#### Post date: [September 21, 2021, 8:44pm UTC](https://support.blue-systems.com/t/lan-connection-problem/5206/6 "2021-09-21T20:44:37Z")
You mean the device manager in windows? Neither Linux nor Windows nor live boot into Linux detect the card. Could it be busted? How would I check?
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### Author:  [@leszek](https://support.blue-systems.com/u/leszek)
#### Post date: [September 23, 2021, 9:01am UTC](https://support.blue-systems.com/t/lan-connection-problem/5206/7 "2021-09-23T09:01:51Z")
You could try a live linux system to see if it works there.
Otherwise make sure that it is activated in BIOS maybe.
And I meant networkmanager which is the thing that handles your network connection and can be configured especially also for ethernet devices.