Changing Which Server You Want To Connect To iOS
1.Open the Liberty Photo App on your iDevice and then Sign In.
If you are not familiar with this procedure please visit the following page:
Opening The Liberty Photo App
2.Tap the Three Dots menu button at the top right of the screen and then tap the Server Info button. 
3.Fill in the Description, the name Server is usually fine. Then fill in the Server Address and the Device Key from what you recorded from your Server computer. Then, tap the Validate Server button. 
Related Topics
How To Download and Setup The Liberty Photo App for iOS
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How To Download and Setup the Liberty Photo App for iOS Video