I have Windows 11 Pro 21H2 installed on a Z690 Aorus Pro, using the onboard Intel i225 Ethernet NIC for a network connection. NIC driver is the latest available from the Gigabyte website: the driver reports itself as v2.1.1.14. The NIC is connected to a UniFi USW-24-POE switch.
The problem is that once every half dozen or so boots, the PC boots up without any network connection. When I look in event viewer at the Windows system logs, the only relevant event is a warning event id 27 from e2fnexpress saying "Intel(R) Ethernet Controller (3) I225-V. Network link is disconnected." At this point, I can always get the network connection working by running Device Manager, and disabling and then enabling the Intel Ethernet Controller I225-V device under Network adapters.
I have three different RJ45 ports that I can connect to, going back to different ports on the switch. The problem continues to happen regardless of which port I connect to, and I've tried different Cat 6 Ethernet cables between the NIC and RJ45 ports, again without any change in the problem. Any suggestions on a possible cause and/or possible solution?
The problem is that once every half dozen or so boots, the PC boots up without any network connection. When I look in event viewer at the Windows system logs, the only relevant event is a warning event id 27 from e2fnexpress saying "Intel(R) Ethernet Controller (3) I225-V. Network link is disconnected." At this point, I can always get the network connection working by running Device Manager, and disabling and then enabling the Intel Ethernet Controller I225-V device under Network adapters.
I have three different RJ45 ports that I can connect to, going back to different ports on the switch. The problem continues to happen regardless of which port I connect to, and I've tried different Cat 6 Ethernet cables between the NIC and RJ45 ports, again without any change in the problem. Any suggestions on a possible cause and/or possible solution?