# MQTT Transmission Refresh Required

**URL:** <https://forum.inductiveautomation.com/t/mqtt-transmission-refresh-required/109443>\
**Category:** Ignition\
**Tags:** ignition81\
**Created:** [August 6, 2025, 7:36pm UTC](https://forum.inductiveautomation.com/t/mqtt-transmission-refresh-required/109443 "2025-08-06T19:36:15Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![wpmccormick](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/wpmccormick/32/13940_2.png) [@wpmccormick](https://forum.inductiveautomation.com/u/wpmccormick)\
**Post date:** [August 6, 2025, 7:36pm UTC](https://forum.inductiveautomation.com/t/mqtt-transmission-refresh-required/109443/1 "2025-08-06T19:36:15Z")

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Maybe this is more of a Cirrus Link question, but there are times when `[MQTT Transmission]Transmission Info/Refresh Required` is in a true state, and there are stale tags on the Engine side. Setting `[MQTT Transmission]Transmission Control/Refresh` makes all the tags happy and the clears `Refresh Required`.

Is there a good reason why IA or CL has not included some automatic way to do this in the driver? Like a "Refresh MQTT Transmission when required"? Would there be a good reason to NOT automate this in a real world application?

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**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [August 6, 2025, 8:11pm UTC](https://forum.inductiveautomation.com/t/mqtt-transmission-refresh-required/109443/2 "2025-08-06T20:11:11Z")

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It is a fairly heavyweight operation. Users with tight bandwidth constraints would want to limit this operation.

If you always want to do it right away, a gateway tag change event script ia all you need.

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**Author:** ![kcollins](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kcollins/32/19646_2.png) [@kcollins](https://forum.inductiveautomation.com/u/kcollins)\
**Post date:** [August 6, 2025, 8:15pm UTC](https://forum.inductiveautomation.com/t/mqtt-transmission-refresh-required/109443/3 "2025-08-06T20:15:04Z")

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If you do automate it, you will probably want to debounce this somewhat to prevent multiple rebirths from happening constantly as you make minor changes. Something to the effect of “if `Refresh Required` hangs out at `True` for more than 10 minutes, go ahead and poke `Refresh`". 🤷