Looks like you PC doesn't support Modern Standby (S0 low power idle) and therefore is unable to gracefully "sleep" while programs like rclone have ongoing network activity.
Modern standby isn't truly sleeping the CPU and network card. They are kept alive, but the power is reduced to almost nothing while keeping network connections open and occasionally checking for mails, updates etc.
You can check your PC with this command (may need Admin terminal):
powercfg -a
More info on Windows sleep modes here:
https://learn.microsoft.com/en-us/windows/win32/power/system-power-states
https://learn.microsoft.com/en-us/windows-hardware/design/device-experiences/modern-standby
If your PC doesn't support Modern Standby, then the best you can do is to keep the PC from sleeping while rclone is active. That is to increase the time before Windows goes into sleep in Settings; or set it to Never.
The above still looks like a network adapter being reset. Was the PC entering sleep when this happened?