I built this ESXi 6.5 lab machine (6.5.0 (Build 4887370) with 2x physical NIC's and it's been fine. I wired up and verified the second NIC pair recently. They won't add to the machine.
vmnic0 and vmnic1 were the original 2. I added vmnic2 and vmnic3 today.
I tried the CLI method:
[root@vmware65hv1:~] esxcli network vswitch standard uplink add --uplink-name=vmnic2 --vswitch-name=vSwitch0
Unable to Set: Sysinfo error: BusySee VMkernel log for details.
[root@vmware65hv1:~] esxcli network vswitch standard uplink add --uplink-name=vmnic3 --vswitch-name=vSwitch0
Unable to Set: Sysinfo error: BusySee VMkernel log for details.
[root@vmware65hv1:~] tail /var/log/vmkernel.log
2019-05-23T15:55:57.514Z cpu16:116571)NetSched: 628: vmnic2-0-tx: worldID = 116571 exits
2019-05-23T15:55:57.514Z cpu1:65629)Uplink: 9893: enabled port 0x4000002 with mac d0:67:e5:e7:5c:8f
<6>bnx2 0000:02:00.1: vmnic3: NIC Copper Link is Up, 1000 Mbps full duplex, receive & transmit flow control ON
2019-05-23T15:56:02.513Z cpu8:65629)NetPort: 1879: disabled port 0x3000002
2019-05-23T15:56:02.514Z cpu5:116572)NetSched: 628: vmnic3-0-tx: worldID = 116572 exits
2019-05-23T15:56:02.514Z cpu8:65629)Uplink: 9893: enabled port 0x3000002 with mac d0:67:e5:e7:5c:91
2019-05-23T15:56:14.128Z cpu18:66989 opID=e56c7b71)World: 12230: VC opID esxcli-d4-7a1e maps to vmkernel opID e56c7b71
2019-05-23T15:56:14.128Z cpu18:66989 opID=e56c7b71)NetTeam: 715: Failed to register uplink vmnic2: Busy
2019-05-23T15:56:19.487Z cpu5:67726 opID=9c0d5f)World: 12230: VC opID esxcli-3b-7a29 maps to vmkernel opID 9c0d5f
2019-05-23T15:56:19.487Z cpu5:67726 opID=9c0d5f)NetTeam: 715: Failed to register uplink vmnic3: Busy
Any idea what may be the cause of this?
Thank you in advance.