Update Digsi to 4.88

Hi,

We have installed DIGSI 4.85(with IEC 61850) for engineering purpose in substation workstations. I want to upgrade it to version 4.88. I downloaded “DIGSI_V4.88_Update.zip” file from siprotec.com website. I extracted it and run setup file. In first step it needed serial number. I entered serial number we had received in the DIGSI package and also used for workstations. After one restart one error dialog box appeared and it was: “Setup frame not registered! Please contact your local dealer” and setup reverted back installation.

This workstation was offline from internet during upgrade. And it was offline before that.

Is it necessary to be online during upgrade and installation??? Or another problem is there?

Please Help Me.

Ershad