Intel® Server Board S2600STBR Cannot Connect to the Network

Onboard Ethernet ports has no connection, only temporarily connects after a reboot

Try the following to see if it resolves the issue:

• Check if both onboard Ethernet ports are not working.
• Check the LED activities of both ports when the issue occurs.
• Replace the Ethernet cable of the affected port.
• Connect the server using a different port from the switch.
• Update the firmware of the server board to the latest version
  • Once updated, perform a power cycle, disconnect the server from the power outlet, and wait for 3 minutes.
  • Reconnect the server from the power outlet and reboot it.