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"Unknown User" error while logging into ION Setup 3.0.

Cause:-

The customer has an older version of ION Setup already installed on the machine and the two versions are conflicting.
 
Resolution :
 Make a backup of the IONSetup.dat file in the Program Files\Schneider Electric\ION Setup folder. This file can
be copied back into the folder afterwards to retain all setup/meter information added in ION Setup.
 
Uninstall all versions of ION Setup, restart the computer and then re-install the newest version as an administrator on the computer.
 
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