Dell WYSE 3290 power savings

Hello all,
Question

We have 5 Dell Wyse 3290 clients
In Administrator i can set power savings to what ever i want lets say Display never off
After restarting to normal user, the power settings are again to default settings 5 min. We can change them but after restart all settings are back to default.

We want this systems be always  on, after restart or powerfailure.