The Internet periodically disappears when it is distributed locally, what could be the problem?

Question

System administration

Good afternoon! I had the task of distributing the Internet with Wi-Fi (in the future it will be usb modem) locally via ethernet. It turned out to distribute, the Internet is distributed, but not stably, it is often interrupted (when the ping command google.com writes "request timeout exceeded"). I made the settings as follows:
1) changed the IPv4 protocol on the distributing computer (IP - 192.168.137.1, mask - 255.255.255.0, dns/gateway - 192.168.137.1);
2) also changed the IPv4 protocol on the receiver (IP-192.168.137.2, mask - 255.255.255.0, dns/gateway - 192.168.137.1);
3) on the distributing PC on the network card, wifi allowed Internet access.
After these steps, everything worked with the Internet, but the Internet is not stable, it, that is, it does not exist. I tried turning off power saving in network adapters, just in case I turned off IPv6. Nothing helps, it still works unstable. Does anyone have any ideas?

Answer 1

The modem has a bad signal ...
The modem is interrupted by a nearby wifi card ...
Try to take the modem out on a usb extension cable, if it's the second one - it can help