Client configurator disappears when entering input fields.
Due to a bug in the .NET3.5 framework in Windows 10, it might happen that the Client configurator crashes (just disappears) when you put the cursor in one of the input fields.
This is caused by an unsupported keyboard layout in Windows. Known examples are English-Finnish and English-Netherland.
To overcome this problem, you can add a supported keyboard layout, e.g. English-United States.
Follow these steps:
Open Language settings in Windows 10 and make sure English (United States) is installed:
Then select it by clicking the language selector on the task bar:
Now configure the WATS Client. You can go back to your preffered keyboard layout again.