# Sync Doesn't Work

**URL:** <https://wled.discourse.group/t/sync-doesnt-work/375>\
**Category:** Issues\
**Created:** [April 29, 2020, 8:18pm UTC](https://wled.discourse.group/t/sync-doesnt-work/375 "2020-04-29T20:18:05Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![tonyno](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/tonyno/32/242_2.png) [@tonyno](https://wled.discourse.group/u/tonyno)\
**Post date:** [April 29, 2020, 8:18pm UTC](https://wled.discourse.group/t/sync-doesnt-work/375/1 "2020-04-29T20:18:05Z")

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If I change the sync port on one system, then select a color on another unit, they are still syncing.

Do I not understand this correctly?

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**Author:** ![mike2nl](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/mike2nl/32/137_2.png) [@mike2nl](https://wled.discourse.group/u/mike2nl)\
**Post date:** [April 29, 2020, 8:26pm UTC](https://wled.discourse.group/t/sync-doesnt-work/375/2 "2020-04-29T20:26:57Z")

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@tonyno  
When the port is changed reboot and try again.  
I’m not sure if the port is changed it will be done in realtime.

When this not works we have to use e.g. Wireshark to check the two WLED ip’s to see which ports are used as request and as answer.

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<div class="post-metadata">

**Author:** ![tonyno](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/tonyno/32/242_2.png) [@tonyno](https://wled.discourse.group/u/tonyno)\
**Post date:** [April 29, 2020, 8:31pm UTC](https://wled.discourse.group/t/sync-doesnt-work/375/3 "2020-04-29T20:31:26Z")

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Thanks. This seems to have started to work without rebooting.