On a Windows 11 machine with Hyper-V turned on, the network will crash every 24 hours or so.
The specific symptom is that the network status in the lower right corner is displayed as not connected.
I don't find any events related to Hyper-V and networking in the system's Event Viewer.
The router's log shows only a disconnect, no errors.
At the same time other network devices found no problems.
What have I tried?
Reinstalled OS without Hyper-V enabled: succesful, it worked for a month without the same problem.
Execute ipconfig /renew command when disconnected: command failed.
Disable NIC and re-enable NIC: No effect.
Replug the network cable: no effect.
Run sfc /scannow: No integrity issues were found.
Rebooting the OS: Works, but the problem reappears after about 24 hours.
Using Windows Network Diagnostics: The problem can be found and fixed, but the problem still occurs after about 24 hours. Problems found: "The default gateway is unavailable（默认网关不可用 默认网关是将本地网络或计算机连接到 Internet 的设备。宽带调制解调器或路由器通常就是默认网关。重置“以太网 2”适配器此操作有时可以解决不稳定问题。）"
Setting the correct gateway manually instead of getting it automatically: doesn't work.
System - Windows 11 Professional Workstation， 22000.376
NetWork Card - Realtek PCIe 2.5GbE Family Controller
Router System - Openwrt 19.07