The motherboard has two Intel® (ESB2/Gilgal) 82563EB Dual-port Gigabit Ethernet Controllers and ESXi 5 seems to find them OK but they are not operational. I have 2 identical machines failing the same way, Linux works fine with the LAN ports.
I found where I may need to upgrade my LAN drivers but procedure required SSH command line which I can not use because I can not SSH into the machine. Is there a way to get to the command line without being on the network?
Why you cannot use SSH? for your information, ssh is not enable by default. You need to use your DCUI interface and enable SSH or ESXi Shell interface. On both you will have command line available.
You can enable the ESXi local shell through the DCUI Interface.
Use the direct console user interface to enable the ESXi Shell:
Enable ESXi Shell
Then prompt ALT+ F1
I have a supermicro X7DB8 and had the same issue with esxi5.0/5.1, as you had: no network connection although it shows both connections live and working. I just tried again today with 5.5 and it didn't work again ... at first. I did two things and now it's working - so i can't tell you which fixed it (yet). Here's what i did:
1. Built a custom iso (i needed to add a driver that wasn't in stock build for my raid card)
2. Only plugged one network interface into the same switch. I plugged the other interface into another separate switch after the first was working (on another vlan for now as well)