User used for run the Linked Mode configuration utility has administrator rights on both vCenter servers ? And are you using the "Run As Administrator" option ?---
Senior Infrastructure Specialist
This is my test lab and the domain that I have created is home.local. I login by Administrator account of my AD Domain. which by default is added as local admin on both the VC Servers.
I tried to run the Linked Mode configuration utility as Admin but no go. I even disabled User Account Control on both the vCenters but no go.