Hi we’ve been running a pair of NTP servers for the pool for several years now. One of them high load (2 Gb setting, ~6 Mbps average) the second lightly loaded (and basically supposed to be switched in should #1 fail) These boxes have been up 24/7 for several years now, in a fully redundant data c…

Seems like temporary network issue. Right now your NTP server is available worldwide - https://atlas.ripe.net/measurements/12444930/#!probes

Perhaps it’s related to this earlier issue? [image] Monitoring station seems to hate my server all of a sudden Server operators So, over the last two days one of our locations NTP server seems to be having issues keeping a connection with the monitoring server. The server…

[image] ChrisW: could it be that we are seeing here US west coast connectivity problems Very much so, yes. My server* is connected by IPv4 and (native) IPv6 so, obviously, holds exactly the same time yet the graph is regularly different. UK, dedicated machine.

It started again. Box fell down to 4.6 this afternoon and is now slowly climbing back (now at 8.7) Are the Californian monitoring station affected by weekend traffic overload? What is their IP? What is their connectivity? Carrier? AS? Anything? And why is there no monitoring from Europe?

I have 3 servers on 2 different ISP’s here in Denmark and they are all at 20 and has been so for days, so it is not a general problem.

I am sorry guys, but this issue is still going on and I’m not closer to any solution. Would somebody please answer my question? What are the IPs of the monitoring systems ? What is their connectivity? Carrier? I need this to have our peering people look into that.

Hello Hedberg, as your “answer” seems to have effectively smothered any further discussion here, I have to state that this is of course a non-sequitur. The internet doesn’t work that way. Just because one place/ISP in Denmark has good connectivity to the US west coast monitoring stations has barel…

You can find the address of the LA monitoring station in this thread: https://community.ntppool.org/t/problems-with-the-los-angeles-ipv4-monitoring-station Other stations are running in the new beta pool: https://web.beta.grundclock.com

Also, network debugging information here: https://dev.ntppool.org/monitoring/network-debugging/ And yes, the beta site has more monitors and more details in the monitoring logs.

Our servers suffer massive down-score - and I don't have the slightest clue why

Server operators

curbynet May 2, 2018, 2:44pm 3

Perhaps it’s related to this earlier issue?

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Server score keeps dropping Server operators monitoring	14	2273	April 19, 2019
Score/network woes Server operators monitoring	71	7518	March 7, 2019
Monitoring station seems to hate my server all of a sudden Server operators	35	4357	April 8, 2019
List of Monitoring IPs? Server operators	18	291	January 2, 2025
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Our servers suffer massive down-score - and I don't have the slightest clue why

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