I was doing some testing on one of our hosts in preparation for moving from Essentials to Essentials plus when I noticed that most of the vmnic's were only reporting 100MB Full Duplex connection speeds. We have a Dell R515 with 2 Broadcom NetExtreme II BCM 5709 cards, all set to auto negotiate, so I thought I would try and force one of the vmnics to communicate at 1000Mb Full Duplex. This has had rather disastrous consequences resulting in lack of connectivity to the host. In vCentre the host is reported as Disconncted and if I try and connect directly to the host I get a "Cannot connect" type error.
Fortunately the VM's are still running so I just need to get this host back online. SSH is off so I can't putty onto the host, though I do have physical access to it if needed.
The management network is running on vmnic8, which is an on board Broadcom BCM5716, whereas I was editing vmnic6 on one of the Broadcom BCM5709 card, so why I would lose connection o the management network I am a little stumped, any help appreciated.
Cheers
Dean