# Latest **URL:** https://community.ntppool.org/latest.md?page=3 [Latest](https://community.ntppool.org/latest.md) · [Categories](https://community.ntppool.org/categories.md) · [Tags](https://community.ntppool.org/tags.md) **Page:** 4 --- ## [Marantz SR5015 AVR – firmware bug causing excessive NTP polling (every 20 seconds)](https://community.ntppool.org/t/marantz-sr5015-avr-firmware-bug-causing-excessive-ntp-polling-every-20-seconds/4283)
**Author:** [@torsten](https://community.ntppool.org/u/torsten)\ **Replies:** 8\ **Last updated:** [March 22, 2026, 2:41am UTC](https://community.ntppool.org/t/marantz-sr5015-avr-firmware-bug-causing-excessive-ntp-polling-every-20-seconds/4283 "2026-03-22T02:41:04Z")
Hi all, I wanted to report a firmware bug in the Marantz SR5015 AV receiver that’s hammering NTP infrastructure. After a recent firmware update, the device sends NTP-related DNS queries every 20 seconds – 10 requests p… --- ## [404 error on retrieving metrics this morning](https://community.ntppool.org/t/404-error-on-retrieving-metrics-this-morning/4291)
**Author:** [@ronv42](https://community.ntppool.org/u/ronv42)\ **Replies:** 6\ **Last updated:** [March 19, 2026, 11:30am UTC](https://community.ntppool.org/t/404-error-on-retrieving-metrics-this-morning/4291 "2026-03-19T11:30:40Z")
Looks like the monitor is not functional this morning: --- ## [Problems with API for getting server scores](https://community.ntppool.org/t/problems-with-api-for-getting-server-scores/4292)
**Author:** [@ChrisJ](https://community.ntppool.org/u/ChrisJ)\ **Replies:** 2\ **Last updated:** [March 19, 2026, 8:34am UTC](https://community.ntppool.org/t/problems-with-api-for-getting-server-scores/4292 "2026-03-19T08:34:19Z")
I don;t know if this is related to the recent migration but for the last couple of days my automated mechanism to periodically check my server scores is not working: $ curl --connect-timeout 5 --max-time 10 -s ‘https://… --- ## [Some DNS servers unresponsive](https://community.ntppool.org/t/some-dns-servers-unresponsive/4284)
**Author:** [@lordgurke](https://community.ntppool.org/u/lordgurke)\ **Replies:** 2\ **Last updated:** [March 19, 2026, 5:42am UTC](https://community.ntppool.org/t/some-dns-servers-unresponsive/4284 "2026-03-19T05:42:13Z")
Hi, some of the authoritative DNS servers for pool.ntp.org are unresponsive at least since about two weeks, thus are slowing down name resolution. Currently (2026-03-12, 22:50Z) the following servers do not respond to … --- ## [Paper: Measurement-Informed Understanding of the NTP Pool’s Robustness to Monopoly Attacks](https://community.ntppool.org/t/paper-measurement-informed-understanding-of-the-ntp-pool-s-robustness-to-monopoly-attacks/4247)
**Author:** [@Sebhoster](https://community.ntppool.org/u/Sebhoster)\ **Replies:** 13\ **Last updated:** [March 13, 2026, 3:02pm UTC](https://community.ntppool.org/t/paper-measurement-informed-understanding-of-the-ntp-pool-s-robustness-to-monopoly-attacks/4247 "2026-03-13T15:02:55Z")
A recently puplished paper with the title mentioned above was shared on the mailinglist of the IETF ntp workinggroup yesterday: https://arxiv.org/pdf/2602.12321 --- ## [NTP Stratum 1 statistics?](https://community.ntppool.org/t/ntp-stratum-1-statistics/4171)
**Author:** [@santiago](https://community.ntppool.org/u/santiago)\ **Replies:** 12\ **Last updated:** [March 12, 2026, 1:00pm UTC](https://community.ntppool.org/t/ntp-stratum-1-statistics/4171 "2026-03-12T13:00:44Z")
Hi, i’v been operating a small NTP server with a GPS receiver antenna. In my country there are a few (4 ipv4 and 2 ipv6) and mine is one of those ipv4. The per-myriad statistic shows some numbers, is there anyway to esti… --- ## [Global zone page: Error: Missing required zone attribute](https://community.ntppool.org/t/global-zone-page-error-missing-required-zone-attribute/4280)
**Author:** [@gunnar](https://community.ntppool.org/u/gunnar)\ **Replies:** 4\ **Last updated:** [March 11, 2026, 3:43pm UTC](https://community.ntppool.org/t/global-zone-page-error-missing-required-zone-attribute/4280 "2026-03-11T15:43:23Z")
I don’t know if it’s fallout from the migration, but the graph on the global zone page pool.ntp.org: NTP Servers in Global, pool.ntp.org (if you click the @ on a servers zones) is missing the graph of servers. --- ## [Infrastructure move](https://community.ntppool.org/t/infrastructure-move/4249)
**Author:** [@ask](https://community.ntppool.org/u/ask)\ **Replies:** 4\ **Last updated:** [March 10, 2026, 5:09am UTC](https://community.ntppool.org/t/infrastructure-move/4249 "2026-03-10T05:09:24Z")
Equinix Metal is sunsetting, so the Pool’s central infrastructure has to move. Packet (later Equinix) generously hosted a lot of systems for almost seven years — they were great, and I’d have stayed if I could. Most of … --- ## [The Pool pages are gone](https://community.ntppool.org/t/the-pool-pages-are-gone/4268)
**Author:** [@Bas](https://community.ntppool.org/u/Bas)\ **Replies:** 11\ **Last updated:** [March 9, 2026, 9:05pm UTC](https://community.ntppool.org/t/the-pool-pages-are-gone/4268 "2026-03-09T21:05:05Z")
@ask 503 Service Unavailable No server is available to handle this request. at https://www.ntppool.org/ --- ## [Looking for NTP stratum 1 servers in India](https://community.ntppool.org/t/looking-for-ntp-stratum-1-servers-in-india/4251)
**Author:** [@stevesommars](https://community.ntppool.org/u/stevesommars)\ **Replies:** 22\ **Last updated:** [March 5, 2026, 2:11pm UTC](https://community.ntppool.org/t/looking-for-ntp-stratum-1-servers-in-india/4251 "2026-03-05T14:11:40Z")
I’m looking for NTP stratum 1 servers in India for my stratum 2 pool server. NPL India is not reachable(unclear why). Most other stratum 1’s I find are too distant or are inaccurate. Any suggestions? --- ## [Some NTP servers in China are experiencing issues, with their time running about five minutes behind the actual time](https://community.ntppool.org/t/some-ntp-servers-in-china-are-experiencing-issues-with-their-time-running-about-five-minutes-behind-the-actual-time/4207)
**Author:** [@Afinder](https://community.ntppool.org/u/Afinder)\ **Replies:** 5\ **Last updated:** [March 5, 2026, 2:37am UTC](https://community.ntppool.org/t/some-ntp-servers-in-china-are-experiencing-issues-with-their-time-running-about-five-minutes-behind-the-actual-time/4207 "2026-03-05T02:37:26Z")
Some NTP servers in China are experiencing issues, with their time running about five minutes behind the actual time. Can somebody tell me how and when to fix it. --- ## [Optimizing server distribution across country zones](https://community.ntppool.org/t/optimizing-server-distribution-across-country-zones/4245)
**Author:** [@Sebhoster](https://community.ntppool.org/u/Sebhoster)\ **Replies:** 23\ **Last updated:** [February 24, 2026, 10:56pm UTC](https://community.ntppool.org/t/optimizing-server-distribution-across-country-zones/4245 "2026-02-24T22:56:26Z")
Hi all, as far as I am aware, the current default server distribution works like this: Each active server is included in the zone for the country it is in, the zone for the continent it is on, and (at sufficient netspee… --- ## [NTP server on LXC container with read only for system clock](https://community.ntppool.org/t/ntp-server-on-lxc-container-with-read-only-for-system-clock/4244)
**Author:** [@freezer](https://community.ntppool.org/u/freezer)\ **Replies:** 6\ **Last updated:** [February 23, 2026, 5:38pm UTC](https://community.ntppool.org/t/ntp-server-on-lxc-container-with-read-only-for-system-clock/4244 "2026-02-23T17:38:21Z")
I have setup a GNSS steered PTP Grandmaster on my network and have my Proxmox host synced via hardware timestamping. It seems you cannot have both hardware and software at the same time, so I was figuring on setting chr… --- ## [Monitoring API? Documentation?](https://community.ntppool.org/t/monitoring-api-documentation/3995)
**Author:** [@ChrisJ](https://community.ntppool.org/u/ChrisJ)\ **Replies:** 4\ **Last updated:** [February 22, 2026, 7:55pm UTC](https://community.ntppool.org/t/monitoring-api-documentation/3995 "2026-02-22T19:55:04Z")
I’ve seen various references here to ‘the monitoring API’ plus some examples. This would be quite useful to me - is there any kind of documentation anywhere about this? --- ## [Statistics graphs missing on pool status page?](https://community.ntppool.org/t/statistics-graphs-missing-on-pool-status-page/4238)
**Author:** [@MagicNTP](https://community.ntppool.org/u/MagicNTP)\ **Replies:** 4\ **Last updated:** [February 20, 2026, 7:47am UTC](https://community.ntppool.org/t/statistics-graphs-missing-on-pool-status-page/4238 "2026-02-20T07:47:31Z")
Is it just me, or are others also not seeing the statistics graphs (e.g., rate of checks by monitoring probes, rate of DNS queries, …) on the pool’s status page anymore? --- ## [How to get Chrony dead right](https://community.ntppool.org/t/how-to-get-chrony-dead-right/4241)
**Author:** [@Bas](https://community.ntppool.org/u/Bas)\ **Replies:** 6\ **Last updated:** [February 12, 2026, 3:52pm UTC](https://community.ntppool.org/t/how-to-get-chrony-dead-right/4241 "2026-02-12T15:52:20Z")
Did anybody see this? Why did it get so stable? I do not know if others tried this. But I found that timedatectl was making a mess of things. This caused it: systemctl disable --now systemd-timesyncd then system… --- ## [NTP not working](https://community.ntppool.org/t/ntp-not-working/4236)
**Author:** [@mb19](https://community.ntppool.org/u/mb19)\ **Replies:** 7\ **Last updated:** [February 11, 2026, 7:25am UTC](https://community.ntppool.org/t/ntp-not-working/4236 "2026-02-11T07:25:17Z")
Hello everyone, I’ve been trying to configure NTP on my OPNsense setup, but it’s not working. I have a double NAT setup. I contacted my ISP, and they confirmed they don’t block NTP traffic. In fact, if I connect a devic… --- ## [Switched from ntpd to chrony, no data anymore](https://community.ntppool.org/t/switched-from-ntpd-to-chrony-no-data-anymore/4239)
**Author:** [@xavier8854](https://community.ntppool.org/u/xavier8854)\ **Replies:** 2\ **Last updated:** [February 9, 2026, 12:58pm UTC](https://community.ntppool.org/t/switched-from-ntpd-to-chrony-no-data-anymore/4239 "2026-02-09T12:58:22Z")
Hi, I switched one of my servers from ntpd to chrony; since then, there are no data anymore : The output of chronyc : root@aragorn:~# chronyc -n tracking Reference ID : 91EE5050 (145.238.80.80) Stratum :… --- ## [No\_sys\_peer, panic stop](https://community.ntppool.org/t/no-sys-peer-panic-stop/1509)
**Author:** [@greenberg.ed](https://community.ntppool.org/u/greenberg.ed)\ **Replies:** 4\ **Last updated:** [February 2, 2026, 8:28pm UTC](https://community.ntppool.org/t/no-sys-peer-panic-stop/1509 "2026-02-02T20:28:03Z")
Sorry to post a basic question here but I’m not sure where else to ask. Lately (twice, now) one of our servers has had the NTP daemon die. I get: Nov 25 19:58:29 replication\_server ntpd\[17559\]: 0.0.0.0 0618 08 no\_sys\_… --- ## [Discussion of client traffic in BE (Belgium) zone](https://community.ntppool.org/t/discussion-of-client-traffic-in-be-belgium-zone/4229)
**Author:** [@stevesommars](https://community.ntppool.org/u/stevesommars)\ **Replies:** 14\ **Last updated:** [February 2, 2026, 7:12pm UTC](https://community.ntppool.org/t/discussion-of-client-traffic-in-be-belgium-zone/4229 "2026-02-02T19:12:59Z")
Bas and I each have a client in the BE zone (actually BE+Europe+Global). Both provide good time accuracy & have scores of 20. Both have netspeed of 3Gbps. I’d like to verify that our clients get similar traffic. Bas… --- ## [How long before a dead monitor is replaced?](https://community.ntppool.org/t/how-long-before-a-dead-monitor-is-replaced/4234)
**Author:** [@john1](https://community.ntppool.org/u/john1)\ **Replies:** 3\ **Last updated:** [February 2, 2026, 2:55pm UTC](https://community.ntppool.org/t/how-long-before-a-dead-monitor-is-replaced/4234 "2026-02-02T14:55:33Z")
I see the monitor kemba1-1a6a7hp has been dead for a few hours. I checked on a few pool servers. But it is still listed in the active list of servers, with a 20 score, which I guess was its last score. So, how long befor… --- ## [Hostname doesn't match against certificate - https://builds.ntppool.dev/ntppool-agent/builds/release/](https://community.ntppool.org/t/hostname-doesnt-match-against-certificate-https-builds-ntppool-dev-ntppool-agent-builds-release/4233)
**Author:** [@john1](https://community.ntppool.org/u/john1)\ **Replies:** 3\ **Last updated:** [January 23, 2026, 6:20am UTC](https://community.ntppool.org/t/hostname-doesnt-match-against-certificate-https-builds-ntppool-dev-ntppool-agent-builds-release/4233 "2026-01-23T06:20:45Z")
My script that checks for new agent versions failed this morning when trying to access: https://builds.ntppool.dev/ntppool-agent/builds/release/ The certificate is for builds.ntppool.dev, so it looks like the correc… --- ## [Chrony comparison - Ubuntu vs FreeBSD](https://community.ntppool.org/t/chrony-comparison-ubuntu-vs-freebsd/4148)
**Author:** [@ccb056](https://community.ntppool.org/u/ccb056)\ **Replies:** 43\ **Last updated:** [January 17, 2026, 5:07pm UTC](https://community.ntppool.org/t/chrony-comparison-ubuntu-vs-freebsd/4148 "2026-01-17T17:07:48Z")
I noticed that on the same machine, with the same configuration, Chrony has much higher/worse estimated error and standard deviation for GPS clocks when run in Linux/Ubuntu vs FreeBSD Here are my Ubuntu stats: And h… --- ## [Some servers polled less frequently since noon today](https://community.ntppool.org/t/some-servers-polled-less-frequently-since-noon-today/4222)
**Author:** [@avij](https://community.ntppool.org/u/avij)\ **Replies:** 16\ **Last updated:** [January 14, 2026, 2:44pm UTC](https://community.ntppool.org/t/some-servers-polled-less-frequently-since-noon-today/4222 "2026-01-14T14:44:53Z")
I noticed that some (but not all) servers get polled less frequently now (example): Other examples: 94.237.125.46, 45.115.225.48, 94.237.79.110, 2a01:4f9:4a:460a::2 (these were not hard to find) However, according … --- ## [Monitoring problems (again)?](https://community.ntppool.org/t/monitoring-problems-again/4227)
**Author:** [@Kets\_One](https://community.ntppool.org/u/Kets_One)\ **Replies:** 4\ **Last updated:** [January 14, 2026, 11:23am UTC](https://community.ntppool.org/t/monitoring-problems-again/4227 "2026-01-14T11:23:01Z")
Since yesterday i am getting “Bad Stratum” errors on some of my servers, (2a02:a46d:7ac:1:f690:eaff:fe00:700e), while they appear to operate perfectly when interrogated from outside the pool ( NTP Server Online Test Tool… --- ## [Shame, shame, shame on you!](https://community.ntppool.org/t/shame-shame-shame-on-you/4151)
**Author:** [@ebahapo](https://community.ntppool.org/u/ebahapo)\ **Replies:** 34\ **Last updated:** [January 12, 2026, 7:50pm UTC](https://community.ntppool.org/t/shame-shame-shame-on-you/4151 "2026-01-12T19:50:05Z")
There is ntp.org in the IPv6 wall of shame, to no one’s surprise: Why No IPv6? :upside\_down\_face: --- ## [Faster than a speeding photon](https://community.ntppool.org/t/faster-than-a-speeding-photon/4225)
**Author:** [@davehart](https://community.ntppool.org/u/davehart)\ **Replies:** 1\ **Last updated:** [January 11, 2026, 5:12pm UTC](https://community.ntppool.org/t/faster-than-a-speeding-photon/4225 "2026-01-11T17:12:50Z")
I’m seeing incredible latencies shown for various monitors for several of my pool servers on the US East coast, such as low 40s to multiple monitors in Russia, and about 70 msec to several Taiwan monitors. Those servers… --- ## [More precise (sensible, sensitive) server monitoring score](https://community.ntppool.org/t/more-precise-sensible-sensitive-server-monitoring-score/3725)
**Author:** [@NTPman](https://community.ntppool.org/u/NTPman)\ **Replies:** 55\ **Last updated:** [January 10, 2026, 3:54pm UTC](https://community.ntppool.org/t/more-precise-sensible-sensitive-server-monitoring-score/3725 "2026-01-10T15:54:15Z")
I am wondering does this retry logic still make sense? With the new multi-location monitoring system in place, servers get very good scores in general. We may want more precise measurement, even knowing about one packe… --- ## [No active nor testing entries](https://community.ntppool.org/t/no-active-nor-testing-entries/4211)
**Author:** [@pakal.org](https://community.ntppool.org/u/pakal.org)\ **Replies:** 6\ **Last updated:** [January 6, 2026, 6:39pm UTC](https://community.ntppool.org/t/no-active-nor-testing-entries/4211 "2026-01-06T18:39:37Z")
Hello, I don’t see any “active” or “testing” entries on my server, is it normal ? is it really used in the pool ? Thanks Pascal --- ## [Consistent 'i/o timeout' from monitor rupee1-38crthf across multiple servers](https://community.ntppool.org/t/consistent-i-o-timeout-from-monitor-rupee1-38crthf-across-multiple-servers/4221)
**Author:** [@FalseTicker](https://community.ntppool.org/u/FalseTicker)\ **Replies:** 2\ **Last updated:** [January 2, 2026, 3:54pm UTC](https://community.ntppool.org/t/consistent-i-o-timeout-from-monitor-rupee1-38crthf-across-multiple-servers/4221 "2026-01-02T15:54:44Z")
I am seeing consistent timeout on multiple servers from rupee1-38crthf across 3 of my Stratum 2 servers. The most effected server is 85.239.235.13 recently started and is trying to reach it’s initial 10.0 score. I have … [Previous page](https://community.ntppool.org/latest.md?page=2) [Next page](https://community.ntppool.org/latest.md?page=4)