iMAC with Broadcom 14e4-1686 BCM57766 : link status down

[marcolefo]

Hi

Working with FOG, we have an iPXE issue with iMac Late 2015 with a Broadcom ethernet adapter.

Here is the thread on FOG forum :
https://forums.fogproject.org/topic/9269...-ipxe-boot

To resume it, when we boot on ipxe :

Code:

IPXE initialising devices...ok
Waiting for link-up on net0... failed: Down (http://ipxe.org/38086193)

On ipxe shell, ifstat say :

Code:

net0: 38:c9:86:xx:xx:xx using 14e4-1686 on 0000:03:00.0 (closed)
  [Link: down, TX:0 TXE:0 RX:0 RXE:0]
  [Link status: Down (http://ipxe.org/38086193)]

In the ipxe shell, we have tried to set up ip manually.

We have made our own ipxe.efi with https://rom-o-matic.eu with :
- all drivers
- only 14e4-1686

We have tried also all the efi image provided by FOG developers.

We have changed RJ 45 cable.
We have portfast activated on the switch port and tested with a non manageable switch. The link LED is always on.

Is there a problem with the driver ?
Thanks for help.