Search found 6 matches
- Wed Apr 10, 2024 12:03 am
- Forum: NetBurner Hardware
- Topic: PK70 NTP Server Offset Drift on Windows LAN
- Replies: 7
- Views: 5902
Re: PK70 NTP Server Offset Drift on Windows LAN
Thankyou for your extremely prompt response. I apologise for the lack of clarity. I don't believe that the PK70 is not working correctly. I am trying to understand the problem with this specific network implementation utilising the PK70 in conjunction with the standard windows client. Where is this ...
- Tue Apr 09, 2024 12:37 pm
- Forum: NetBurner Hardware
- Topic: PK70 NTP Server Offset Drift on Windows LAN
- Replies: 7
- Views: 5902
Re: PK70 NTP Server Offset Drift on Windows LAN
When left to log for an extended period the sync between the PCs drifts out to around 50 ms before correcting by a shift of around 50 ms. I assume that this is at the point where the offset triggers the immediate clock reset due to the check: PhaseCorrection ≤ SystemClockRate ÷ 2 becoming false This...
- Tue Apr 09, 2024 12:35 pm
- Forum: NetBurner Hardware
- Topic: PK70 NTP Server Offset Drift on Windows LAN
- Replies: 7
- Views: 5902
Re: PK70 NTP Server Offset Drift on Windows LAN
w32tm stripchart output for Netburner NTP server
delay is reliable
offset is drifting
18:16:15 d +00.0014044s o +00.1200124s
18:16:17 d +00.0014202s o +00.1196326s
18:16:19 d +00.0005767s o +00.1199734s
18:16:21 d +00.0013790s o +00.1195790s
18:16:23 d +00.0009545s o +00.1198901s
delay is reliable
offset is drifting
18:16:15 d +00.0014044s o +00.1200124s
18:16:17 d +00.0014202s o +00.1196326s
18:16:19 d +00.0005767s o +00.1199734s
18:16:21 d +00.0013790s o +00.1195790s
18:16:23 d +00.0009545s o +00.1198901s
- Tue Apr 09, 2024 12:34 pm
- Forum: NetBurner Hardware
- Topic: PK70 NTP Server Offset Drift on Windows LAN
- Replies: 7
- Views: 5902
Re: PK70 NTP Server Offset Drift on Windows LAN
w32tm stripchart output for time.windows.com delay is inconsistent and often > 0.1s offset is drifting 17:58:12 d +00.0329220s o +00.1005369s 17:58:14 d +00.0445815s o +00.1041230s 17:58:17 d +00.0315021s o +00.1026311s 17:58:19 d +00.0380554s o +00.1041515s 17:58:21 d +00.0298747s o +00.0989348s
- Tue Apr 09, 2024 12:33 pm
- Forum: NetBurner Hardware
- Topic: PK70 NTP Server Offset Drift on Windows LAN
- Replies: 7
- Views: 5902
Re: PK70 NTP Server Offset Drift on Windows LAN
Here are some example w32tm stripchart logs taken from the PC that the PK70 NTP server is attached to
- Tue Apr 09, 2024 12:25 pm
- Forum: NetBurner Hardware
- Topic: PK70 NTP Server Offset Drift on Windows LAN
- Replies: 7
- Views: 5902
PK70 NTP Server Offset Drift on Windows LAN
I am using a PK70 NTP server as a stratum 1 NTP server time source for a Windows system running on a LAN. The system requires all PCs on the LAN to be consistently and robustly synced to within 5 milliseconds during system operation. An accuracy of < 1ms offset across all machines is preferable. The...