VM network not able to connect after upgrade

[umarzuki]

after successfully upgrading 2 esxi 4.1 to 4.1 update 2, every VM on these 2 VM failed to get connection. If I remove the VM to another esxi 4.1 update 2 that is not on the cluster, it can connect to the network, else it cannot even ping its gateway. On dvswitch, i can see the VMs port link is down.

one way for me to circumvent this is by creating a new vNIC on a normal virtual switch

what is actually happening here?

[mwpreston]

if you remove and re add this machine to the dvSwitch does it come back online?  Also a little bit of a stupid question, but is the nic connected?

[umarzuki]

the nic is only connected in the situation it is on another outside of the cluster.

so i tried removing one of the host (host A) outside of vDSwitch, reconfigure vSwitch and VM can connect to network. After I re-add host A to the dvswitch, the VM also can reach the uplink's network.

but if i do the same to all hosts, the VM could not connect to the network anymore.

so i though this might had to do something with dvswitch being srewed after upgrade, so i removed host A from dvswitch, reconfigured vswitch but the VM is not able to reach uplink's network. The only dissimilarity from last configuration are that i create 2 vswitch, 1 management port for each uplink (2 uplinks connecting to different network), 1 vmotion for each vswitch.

i found these in that VM's vmware.log

Nov 17 06:14:56.075: vmx| TOOLS received request in VMX to set option 'synctime' -> '0'
Nov 17 06:14:56.079: vmx| VMXVmdb_LoadRawConfig: Loading raw config
Nov 17 06:14:56.165: vcpu-0| Msg_Post: Error
Nov 17 06:14:56.165: vcpu-0| [msg.ethernet.e1000.openFailed] Failed to connect ethernet0.
Nov 17 06:14:56.165: vcpu-0| ----------------------------------------
Nov 17 06:18:32.439: vmx| TOOLS received request in VMX to set option 'synctime' -> '0'
Nov 17 06:18:32.442: vmx| VMXVmdb_LoadRawConfig: Loading raw config
Nov 17 06:18:32.528: vcpu-0| Msg_Post: Error
Nov 17 06:18:32.528: vcpu-0| [msg.ethernet.e1000.openFailed] Failed to connect ethernet0.
Nov 17 06:18:32.528: vcpu-0| ----------------------------------------