# Bacnet /IP device - Uninitialized - Segment did not fit in segment window

**URL:** <https://forum.inductiveautomation.com/t/bacnet-ip-device-uninitialized-segment-did-not-fit-in-segment-window/81521>\
**Category:** Ignition\
**Tags:** ignition81, perspective\
**Created:** [November 6, 2023, 3:39am UTC](https://forum.inductiveautomation.com/t/bacnet-ip-device-uninitialized-segment-did-not-fit-in-segment-window/81521 "2023-11-06T03:39:59Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Lina\_Su](https://avatars.discourse-cdn.com/v4/letter/l/7ba0ec/32.png) [@Lina\_Su](https://forum.inductiveautomation.com/u/Lina_Su)\
**Post date:** [November 6, 2023, 3:40am UTC](https://forum.inductiveautomation.com/t/bacnet-ip-device-uninitialized-segment-did-not-fit-in-segment-window/81521/1 "2023-11-06T03:40:00Z")

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Hi ,  
I am configuring bacnet device on my Ignition gateway, and the staus becomes Uninitialized after it's initializing... for a few seconds.  
I do the ping check , network seems fine.  
I tried with other software to communicate with my bacnet device, it read data successfully.  
Can someone help to understand where I did wrong when setup.

Here's some logs and screenshots of my configuration.

**Ignition Logs:**

'''

| Logger | Time | Message |
| --- | --- | --- |
| RequestUtils | 06Nov2023 11:25:21 | Chunked request failed. |
| RequestUtils | 06Nov2023 11:25:20 | Chunked request failed. |
| DefaultTransport | 06Nov2023 11:25:15 | Segment did not fit in segment window: segment=2, first=3, windowSize=1, key=Key(address=Address [networkNumber=13, macAddress=[1]], linkService=[c0,a8,1,e9,ba,c0], invokeId=54, fromServer=true) |
| DefaultTransport | 06Nov2023 11:25:13 | Segment did not fit in segment window: segment=2, first=3, windowSize=1, key=Key(address=Address [networkNumber=13, macAddress=[1]], linkService=[c0,a8,1,e9,ba,c0], invokeId=50, fromServer=true) |
| DefaultTransport | 06Nov2023 11:25:12 | Segment did not fit in segment window: segment=2, first=3, windowSize=1, key=Key(address=Address [networkNumber=13, macAddress=[1]], linkService=[c0,a8,1,e9,ba,c0], invokeId=54, fromServer=true) |
| DefaultTransport | 06Nov2023 11:25:11 | Segment did not fit in segment window: segment=2, first=3, windowSize=1, key=Key(address=Address [networkNumber=13, macAddress=[1]], linkService=[c0,a8,1,e9,ba,c0], invokeId=50, fromServer=true) |
| DefaultTransport | 06Nov2023 11:25:09 | Segment did not fit in segment window: segment=2, first=3, wi |

**Here's my configuration and efforts I have done to debug the issue:**

**Local device:**

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/6/2/629338457d21c790ba6de5da10efd310e861661c.png)

**OPC Device:**

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/4/2/42619f7c03891cf365af948009aad74a036219c7.png)

**PING Check:**  
 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/7/9/79f5757f4da63835790a18d1a9c3d7a4edd455eb.png)

**Other software(Bacnetscan) to validate the communication:**

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/e/4/e43b7b9eb0f6042e4962beaf5ba7a02f81f33cc1.png)

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/6/9/694cca1b195b3e4417e5662634452e290e835dc0.png)

**Another software Yabe to test the communication:**

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/7/a/7a278c1f9a7883c2c9282df39f3588dbc89956af.png)

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/c/b/cb2d4546d9541aceca06de542f76a869edda5e42.png)

\*\*Can anyone suggest what else I should do to address the issue. \*\*

**Thanks in advance.**

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<div class="post-metadata">

**Author:** ![kyler.kamyszek](https://avatars.discourse-cdn.com/v4/letter/k/a4c791/32.png) [@kyler.kamyszek](https://forum.inductiveautomation.com/u/kyler.kamyszek)\
**Post date:** [November 7, 2023, 1:30pm UTC](https://forum.inductiveautomation.com/t/bacnet-ip-device-uninitialized-segment-did-not-fit-in-segment-window/81521/2 "2023-11-07T13:30:48Z")

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Try changing your bind address to 0.0.0.0 in your local device settings. You might have to disable COV on the device settings if your device doesn't support that.

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<div class="post-metadata">

**Author:** ![Lina\_Su](https://avatars.discourse-cdn.com/v4/letter/l/7ba0ec/32.png) [@Lina\_Su](https://forum.inductiveautomation.com/u/Lina_Su)\
**Post date:** [February 23, 2024, 3:57am UTC](https://forum.inductiveautomation.com/t/bacnet-ip-device-uninitialized-segment-did-not-fit-in-segment-window/81521/3 "2024-02-23T03:57:56Z")

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I have disabled COV , and change bind address from machine IP address to 0.0.0.0, still it's unitialized .

But when I am using other software connection to test it , it works quite good, only Igniton does .

Meanwhile, I also use netstat -anon|findstr 47808 to make sure the port is not accupied after I have closed 3rd party software when debug.

Have been spending months on this , can anyone give guidance.

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**Author:** ![eacg](https://avatars.discourse-cdn.com/v4/letter/e/96bed5/32.png) [@eacg](https://forum.inductiveautomation.com/u/eacg)\
**Post date:** [October 9, 2025, 8:25am UTC](https://forum.inductiveautomation.com/t/bacnet-ip-device-uninitialized-segment-did-not-fit-in-segment-window/81521/4 "2025-10-09T08:25:12Z")

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Are you able to fix this issue? I am encountering same issue.