When you use the Sysprep tool to deploy computers, the ComputerName from the Sysprep.inf file is always converted to uppercase when mini-setup finishes.

To workaround this problem:

1. Use the registry editor to navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters.

2. Change the data values in the Hostname and NV Hostname strings to lowercase.

3. If Hostname is present at HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\DNSRegisteredAdapters, change it also.

4. Exit the Registry Editor.