The NTP system will work anyway, the Meinburg monitoring software is realy only an additional benefit. I look at the graphs occasionally and check that there are a number of Stratum 2 and 3 systems in the NTP Status tab. It is old software now, so I doubt Meinburg will be offering any support for it anymore...
Using the command 'ntpq -pn' in a command prompt will tell you that NTP is running and which systems your PC has heard from.
