# Modbus module fix from 8.1.53-nightly on a 8.1.51 or 8.1.52?

**URL:** <https://forum.inductiveautomation.com/t/modbus-module-fix-from-8-1-53-nightly-on-a-8-1-51-or-8-1-52/113829>\
**Category:** Ignition\
**Tags:** ignition81\
**Created:** [February 7, 2026, 11:11am UTC](https://forum.inductiveautomation.com/t/modbus-module-fix-from-8-1-53-nightly-on-a-8-1-51-or-8-1-52/113829 "2026-02-07T11:11:41Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![mazeyrat](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/mazeyrat/32/10955_2.png) [@mazeyrat](https://forum.inductiveautomation.com/u/mazeyrat)\
**Post date:** [February 7, 2026, 11:11am UTC](https://forum.inductiveautomation.com/t/modbus-module-fix-from-8-1-53-nightly-on-a-8-1-51-or-8-1-52/113829/1 "2026-02-07T11:11:41Z")

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@Kevin.Herron is it possible to install only the modbus module from **8.1.53-nightly** on a **8.1.51** or **8.1.52**?

We have 2 site going live in production at the end of next week with hundreds of modbus TCP devices.

We suspect that some devices have perhaps data "freezed" probably on connection lost.  
The issue is solved by disable/enable those devices in Ignition.

I was planning to only patch the modbus module driver as I 'm not sure we can wait for the release..

## Drivers: Nightly Changelog: 8.1.53-SNAPSHOT-b20260206

**IGN-14826: Backport: Deadlock in Modbus Driver**  
Fixed an issue where the Modbus driver could deadlock when the connection to the device is lost.

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**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [February 7, 2026, 12:37pm UTC](https://forum.inductiveautomation.com/t/modbus-module-fix-from-8-1-53-nightly-on-a-8-1-51-or-8-1-52/113829/2 "2026-02-07T12:37:32Z")

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Yes, but unless you’re seeing a big “deadlock detected” banner in the Ignition Gateway this isn’t your issue.

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**Author:** ![mazeyrat](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/mazeyrat/32/10955_2.png) [@mazeyrat](https://forum.inductiveautomation.com/u/mazeyrat)\
**Post date:** [February 7, 2026, 12:42pm UTC](https://forum.inductiveautomation.com/t/modbus-module-fix-from-8-1-53-nightly-on-a-8-1-51-or-8-1-52/113829/3 "2026-02-07T12:42:23Z")

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Thanks !  
We dont have this banner.  
So the issue is perhaps on the modbus server device...

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**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [February 7, 2026, 12:43pm UTC](https://forum.inductiveautomation.com/t/modbus-module-fix-from-8-1-53-nightly-on-a-8-1-51-or-8-1-52/113829/4 "2026-02-07T12:43:52Z")

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That's what I'd bet on.