vSphere – ‘Cannot complete operation due to concurrent modification by another operation’


KB ID 0001069 Dtd 26/05/15


I had been messing around with ports groups and VLANS, and afterwards when attempting to present a server some vNICs I got this error.

cannot complete concurrent


No matter what I did this error refused to budge, when this happens it’s usually because vCenter has got its knickers in a twist. On the vCenter server simply restart the VMware Virtual Center Server service and try again.

vcenter server service

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Author: Migrated

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