network connection problems. Ubuntu 18.04

[jmgmayo]

When I am downloading files such as ubuntu distributions I drop the network connection. I lose all the LAN settings and I have to restart the computer.


I have a newly installed 18.04 distribution (I thought it was a version issue).


Any idea how to analyze what can happen? The problem does not appear from a Windows computer connected to the same lan.


regards

[mörgæs]

If you download using wget from the command line do you get any error messages?

[jmgmayo]

Hi, using wget it is the same behaviour

wget http://releases.ubuntu.com/19.04/ubu...ktop-amd64.iso

Start the download and after maybe 2 min the velocity decrease and lost the connectivity. I have another pc with windows running in the same LAN and this pc works fine. I have install 16.04 LTS and the problem it is the same.

Can i check if there is any problem with the network card?

Thanks a lot for your help

[mörgæs]

I don't know much about network problems but other people here do.
They would probably prefer if you began with the guide for troubleshooting.

[jmgmayo]

Thanks a lot for the information. The information is about Wireless connection. My problem is in PC (no laptop) and using LAN (wired conecction) conection. Is there any information similar to indetify problems with wired conection?

Regards

[mörgæs]

I am aware that the script is mainly for solving wireless problems but since we don't have any data at all we can only hope that it might show something of interest.

[SeijiSensei]

You're not trying to have both a wired and a wireless connection from the same machine, are you? That can cause problems with packet routing. Just use the wired connection and disable the wireless.

[jmgmayo]

Hi, it is a desktop machine. There is no wireless connection. Only wired card.

There is any script to monitor wired activity?

Regards.

[1fallen]

Sure all sorts: https://askubuntu.com/questions/2572...n-the-terminal

[jmgmayo]

Thanks a lot for your response. I have installed bmon y tcptrack. I can not find the correct ethernet interface. When i launch bmon process only display interface

enp0s5

This interface increase the velocity up 11Mb/s (when i start to download the ubuntu image) and after a few minutes decrease to 0 and i can not connect to internet. I need to restart the computer to access to internet. Any idea how t identify the problem?

Regards.