The problem is NetworkManager working in Kali Linux?

Hello, eth0 falls off after a few hours of work in Kali Linux. Restart Network Manager does not help. I checked the command (ip a) that the computer sees the ethernet. Most likely something in Network Manager. What could be the problem?

PS
In NetworkManager.conf tried to change c false to true does not help.
[ifupdown]
managed=true
June 3rd 19 at 20:21
1 answer
June 3rd 19 at 20:23
To kill NetworkManager and configure manually.

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