My name is***** am sorry to hear that you are having this issue.
I will be glad to assist you with this.
This sounds like your Lenovo has lost its boot device, it is missing or boot failed. The pci lan iba ge slot 00c8 v1381is the Ethernet port. It appears in the Boot priority order for booting over your network.
Do you have the Lenovo's recovery media?
do you still need help with this?