# Switched from ntpd to chrony, no data anymore

**URL:** <https://community.ntppool.org/t/switched-from-ntpd-to-chrony-no-data-anymore/4239>\
**Category:** Monitoring Operators\
**Created:** [February 9, 2026, 12:06pm UTC](https://community.ntppool.org/t/switched-from-ntpd-to-chrony-no-data-anymore/4239 "2026-02-09T12:06:33Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![xavier8854](https://sea2.discourse-cdn.com/flex016/user_avatar/community.ntppool.org/xavier8854/32/2464_2.png) [@xavier8854](https://community.ntppool.org/u/xavier8854)\
**Post date:** [February 9, 2026, 12:06pm UTC](https://community.ntppool.org/t/switched-from-ntpd-to-chrony-no-data-anymore/4239/1 "2026-02-09T12:06:33Z")

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Hi, I switched one of my servers from ntpd to chrony; since then, there are no data anymore :

> **[pool.ntp.org: Statistics for 176.31.180.205](https://www.ntppool.org/scores/176.31.180.205)**

The output of chronyc :

`root@aragorn:~# chronyc -n tracking`  
`Reference ID : 91EE5050 (145.238.80.80)`  
`Stratum : 2`  
`Ref time (UTC) : Mon Feb 09 12:01:26 2026`  
`System time : 0.000040531 seconds fast of NTP time`  
`Last offset : -0.000021177 seconds`  
`RMS offset : 0.000104241 seconds`  
`Frequency : 9.948 ppm fast`  
`Residual freq : -0.003 ppm`  
`Skew : 0.070 ppm`  
`Root delay : 0.004642044 seconds`  
`Root dispersion : 0.000315822 seconds`  
`Update interval : 517.4 seconds`  
`Leap status : Normal`

The firewall is opened :

`root@aragorn:~# ufw status | grep 123`  
`123/udp ALLOW Anywhere`  
`123/udp (v6) ALLOW Anywhere (v6)`

What happens ?

Regards,

Xavier

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<div class="post-metadata">

**Author:** ![Bas](https://sea2.discourse-cdn.com/flex016/user_avatar/community.ntppool.org/bas/32/465_2.png) [@Bas](https://community.ntppool.org/u/Bas)\
**Post date:** [February 9, 2026, 12:41pm UTC](https://community.ntppool.org/t/switched-from-ntpd-to-chrony-no-data-anymore/4239/2 "2026-02-09T12:41:58Z")

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Did you allow access? As it’s disabled by default:

```auto
# By default, chronyd does not allow any clients to access it. You need
# to explicitly enable access using 'allow' and 'deny' directives.
# e.g. to enable client access from the 192.168.*.* class B subnet,
allow 127.0.0.1
allow 192.168.1.0/24
allow all

```

/etc/chrony/chrony.conf

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<div class="post-metadata">

**Author:** ![xavier8854](https://sea2.discourse-cdn.com/flex016/user_avatar/community.ntppool.org/xavier8854/32/2464_2.png) [@xavier8854](https://community.ntppool.org/u/xavier8854)\
**Post date:** [February 9, 2026, 12:58pm UTC](https://community.ntppool.org/t/switched-from-ntpd-to-chrony-no-data-anymore/4239/3 "2026-02-09T12:58:22Z")

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Ah ! Stupid me forgot that.

Thanks !