Hi Craig Jirowetz,
Could you try the following steps.
1. If your system is not US-English, to set the date format to mm/dd/yyyy
2. Make sure that you are using the Admin account for the MS Windows OS on the server
If this doesn't help, can you please provide more details about the problematic server - is it a domain controller or any information that you might think is useful.
the Telerik team
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