In ubuntu, the network does not work, both dhcp and with a static ip. How to fix?

Question

linux

A cleanly delivered system cannot enter the network, specifically, it does not receive an ip address. Nearby is a computer with windows 7 with the same poppy address as the experimental one and on the same cable - it works flawlessly.
The IP address manually registered through the network manager, which, by the way, is always the same, although in theory it comes via dhcp, does not change anything, except for the icon of the NM itself.
Please help me to pinpoint what is going wrong. I've already broken my head. I will provide the output of any commands (both from wines and from ubunta).
Thank you in advance for your help.

Answer 1

You have a direct IP configured on Windows. How are you trying to connect Ubuntu?
As I understand you have 2 PCs. Do you have a router or are you switching from a Windows PC to an Ubuntu PC with a wire?

Answer 2

Judging by the comments, the provider can block everything that is not Windows via TTL, it is different by default in different OSes, search the net, you will find similar questions and solutions. I myself once set up a router in a similar situation, so that the provider could not distinguish it from a regular Windows laptop.

Answer 3

How are these two computers with the same MAC? Are they online at the same time? And how should it work?

Answer 4

The devil knows why, but it already worked. But for how long is the question.