[ntp:questions] NTP 4.2.8p10 released

Martin Burnicki martin.burnicki at meinberg.de
Mon Mar 27 14:50:40 UTC 2017


Dan Gearty wrote:
> I have been using the loopback driver on Windows 10. It had been
> running OK in older versions up to 4.2.8p9. Now in 4.2.8p10 it
> appears that junk characters are appended to the driver name when it
> is called.  The junk characters are different each time NTP is 
> restarted.

This is a bug which made it into ntpd 4.2.8p10. I've just found the
reason and opened an issue on bugzilla:

I've also already a fix for this.

The best solution for you is to specify the DLL name in a registry key
instead of the environment variable.

Run regedit and open this registry path:

Then create a new key as multipart string, with the name "PPSProviders",
and the contents "loopback_pps_api_provider.dll".

Or, as a temporary workaround for the environment variables, you could
try to append a dummy DLL name to the real DLL name, e.g.:


Martin Burnicki

Meinberg Funkuhren
Bad Pyrmont

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