Why does the local network fall off?

Question

Computer networks

On one of the working computers, the connection to the local network periodically (several times a day) falls off. This is usually solved by "plug-and-play" of the patch cord, but not always. What could be the reason and how can it be determined exactly?
OS - Windows 10

Answer 1

I propose to apply the scientific method of poke.
- change the patchcore
- recompress the patchcord
- change the port on the switch
- update the drivers on the network card
- try the usb network card

Answer 2

No one mentions, but in vain - problems can be in a simple IP address conflict due to poorly configured DHCP. And just this case is suitable for plugging in / outgoing the cable, while the computer simply receives a new IP address from the DHCP server again.
And of course, there may be problems in wires (cables, crimping, switches, etc.), poor quality and inept construction of the network itself, drivers and cards.
At a minimum, run the terminal (cmd.exe) and use the ipconfig utility to check the status of the link. Also see the status of the network card - there is a corresponding fad there. Ping nearby computers and routers.

Answer 3

It is checked by the usual actions, like any other problem in the network: First you check the "physics", then the "logic" and based on the tests, draw conclusions.

Answer 4

The reason may be a bad cable or drivers