"Windows could not automatically detect the network proxy." Solutions?

Question

Windows

Elementary win problem that pissed me off.
There are 2 pc. On 1 there is Internet, on 2 - no, but sometimes it appears. On both, there is an error from the cap when working both under w-fi and on a cord. The error is the same on another router on the same provider under the second contract from a neighboring building.
I am in another city, so I try to solve the problem remotely, but neither TW, nor Ammy, nor anything else connects.
In the browser settings, the use of a proxy is disabled, it costs auto. definition, tried without it. The WinHTTP service is running.
Tried netsh int ip reset and netsh winsock reset.
Firewall, antivirus disabled. I don't see any more options.
Everything works on mobile internet.

Answer 1

I don't see any more options.

Is it not an option to disable ipv6 in connection settings?