I believe there is a bug in the install process of SnapDrive for Windows 6.1. If you select the host license and enter a valid key it says it is invalid and will not continue with the install. If you then select the filer license it will then install ok. Once installed I have found I can then add the host license using either the CLI or SnapDrive GUI.
Yes it is still a problem (well we have a valid work around by not using the key at install time), we implemented SnapDrive 6.0 when we first found the problem, I have then re-created the issue on a VM back in the office using SnapDrive 6.1 and tried the workaround. Therefore the attached OnTapWinDC output is from the VM. May be the issue is key specific so I will PM you the key I used and serial number?
The OnTapWinDC attachment is password protected as the logs contain live keys, I will PM you the password as well.