Abacus Server IP Change By Hayden Graham | April 12, 2019 0 Comment Change the following key to update the server IP (Not a system name) for the Abacus client or create a GPO Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Abacus\Abacus Client] @="" "ServerAddress"="192.168.40.200"