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The Source IP field inside Master or device DTM may be reset to default address (127.0.0.1) and in read-only. How can I fix this while using Unity Pro V11.

On Windows 7 64 bits, or Windows Server 2008 64 bits, the Source IP field inside Master or device DTM may be reset to default address (127.0.0.1) and in read-only.
So it is no more possible to update IP adress and hence no more possible to connect to the target devices from the DTM menus.
The only way to make it work again is to restart UnityPro.

The issue is due to wrong Windows 64 bits API Network function behavior.
Microsoft delivered fix for computers where this issue is found.
The problem is described in Microsoft KB article http://support.microsoft.com/kb/2588507/en
From Microsoft recommendation, the fix should only be applied on machines with the mentioned configuration, and where issue described above occurs
· Unity Pro requires Microsoft .NET 3.5. Depending on the target Windows version and Windows configuration, .Net 3.5 may be
- not installed
- installed but not enabled ( the related "windows feature" is not set ON )
- installed and enabled
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