Others who have encountered this issue with the Intel I217 ethernet adaptor on the live ISO, have had success disabling the Wake On LAN (WOL) feature under Windows.
I’m not sure specifically how that is done under Windows, but hopefully that’s a point in the right direction?
Sources:
- EndeavourOS > No ethernet connection (Intel i217-V) USB live install
- Arch > Ethernet issues after booting Windows (Intel I217-V (e1000e))
Perhaps of help:
- Intel Support > Enabling Wake-on-LAN (just disable instead enabling)