UEFI Boot Environment

[dcsdne]

We have recently installed a x440-G2. We are unable to boot into the UEFI imaging environment from our KACE box when directly connected to the switch. However if we place an unmanged 8 port switch between the systems and the x440 it boots in just fine. When have other systems in the office connected to the x440 and they are all functioning fine. Any thoughts?

[dcsdne · Accepted solution]

To resolve the issue I disabled stpd and all our systems are booting into the imaging environment without a problem

[dcsdne]

Thank you for the reply. This imaging environment is actually all uni-cast based.

[PeterK]

I think you need to configure igmp correctly or you need to disable igmp-snooping. By default it's enabled in XOS and switch will not flood multicast frames. But in this case a querrier is required.