# Why ntpdate -q does not work?

**URL:** <https://community.ntppool.org/t/why-ntpdate-q-does-not-work/1642>\
**Category:** Client Configuration and Development\
**Created:** [April 15, 2020, 4:51pm UTC](https://community.ntppool.org/t/why-ntpdate-q-does-not-work/1642 "2020-04-15T16:51:10Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![stevesommars](https://sea2.discourse-cdn.com/flex016/user_avatar/community.ntppool.org/stevesommars/32/2075_2.png) [@stevesommars](https://community.ntppool.org/u/stevesommars)\
**Post date:** [May 17, 2020, 1:34pm UTC](https://community.ntppool.org/t/why-ntpdate-q-does-not-work/1642/3 "2020-05-17T13:34:06Z")

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ntpdate -q will attempt to use client UDP port 123. If that port is already in use (e.g., by ntpd), then ntpdate -q will fail.

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_[View the full topic](https://community.ntppool.org/t/why-ntpdate-q-does-not-work/1642)._