# 8.3 Comm errors on sim devices after install

**URL:** <https://forum.inductiveautomation.com/t/8-3-comm-errors-on-sim-devices-after-install/109998>\
**Category:** Ignition 8.3 Early Access\
**Created:** [August 20, 2025, 5:47pm UTC](https://forum.inductiveautomation.com/t/8-3-comm-errors-on-sim-devices-after-install/109998 "2025-08-20T17:47:52Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Brian\_McClure](https://avatars.discourse-cdn.com/v4/letter/b/7ba0ec/32.png) [@Brian\_McClure](https://forum.inductiveautomation.com/u/Brian_McClure)\
**Post date:** [August 20, 2025, 5:47pm UTC](https://forum.inductiveautomation.com/t/8-3-comm-errors-on-sim-devices-after-install/109998/1 "2025-08-20T17:47:52Z")

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Good afternoon,

I thought that this issue was related to the one posted by Gareth Lovell about a communication error, but reading more closely I’m thinking it might be different. After downloading 8.3 I had no issues with any of my simulated devices, and now as of this week I have noticed that I can not connect to any of the simulated devices, even new ones that I have just created. The error I am getting is _“ **CreateMonitoredItems failed: Bad\_InvalidState: The operation cannot be completed because the object is closed, uninitialized or in some other invalid state**._” It is on all of the tags in every simulated device that I have in any of my projects. Not sure if its similar to the error that Gareth is experiencing or not, but I figured I would post about it. As a side note I only have simulated devices in our system so obviously it isn’t impacting anything in production.

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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:** [August 20, 2025, 5:50pm UTC](https://forum.inductiveautomation.com/t/8-3-comm-errors-on-sim-devices-after-install/109998/2 "2025-08-20T17:50:12Z")

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Which beta version of 8.3 are you using?

This may be the same as an issue that was already fixed and should be part of 8.3.0-beta4.

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<div class="post-metadata">

**Author:** ![Brian\_McClure](https://avatars.discourse-cdn.com/v4/letter/b/7ba0ec/32.png) [@Brian\_McClure](https://forum.inductiveautomation.com/u/Brian_McClure)\
**Post date:** [August 20, 2025, 5:50pm UTC](https://forum.inductiveautomation.com/t/8-3-comm-errors-on-sim-devices-after-install/109998/3 "2025-08-20T17:50:44Z")

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8.3.0-beta 1

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<div class="post-metadata">

**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:** [August 20, 2025, 5:51pm UTC](https://forum.inductiveautomation.com/t/8-3-comm-errors-on-sim-devices-after-install/109998/4 "2025-08-20T17:51:17Z")

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Cool, try beta4, report back if it happens again at some point.

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<div class="post-metadata">

**Author:** ![Brian\_McClure](https://avatars.discourse-cdn.com/v4/letter/b/7ba0ec/32.png) [@Brian\_McClure](https://forum.inductiveautomation.com/u/Brian_McClure)\
**Post date:** [August 20, 2025, 5:51pm UTC](https://forum.inductiveautomation.com/t/8-3-comm-errors-on-sim-devices-after-install/109998/5 "2025-08-20T17:51:36Z")

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Will do, thank you.

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**Author:** ![Brian\_McClure](https://avatars.discourse-cdn.com/v4/letter/b/7ba0ec/32.png) [@Brian\_McClure](https://forum.inductiveautomation.com/u/Brian_McClure)\
**Post date:** [August 20, 2025, 6:05pm UTC](https://forum.inductiveautomation.com/t/8-3-comm-errors-on-sim-devices-after-install/109998/6 "2025-08-20T18:05:59Z")

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That was the fix, thank you very much for your quick response.