# Deleted TCP device, high CPU use

**URL:** <https://forum.inductiveautomation.com/t/deleted-tcp-device-high-cpu-use/59164>\
**Category:** Ignition\
**Created:** [May 3, 2022, 2:40pm UTC](https://forum.inductiveautomation.com/t/deleted-tcp-device-high-cpu-use/59164 "2022-05-03T14:40:10Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![akettner](https://avatars.discourse-cdn.com/v4/letter/a/ac8455/32.png) [@akettner](https://forum.inductiveautomation.com/u/akettner)\
**Post date:** [May 3, 2022, 2:40pm UTC](https://forum.inductiveautomation.com/t/deleted-tcp-device-high-cpu-use/59164/1 "2022-05-03T14:40:10Z")

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For testing purposes, I set a TCP driver to talk to a device. Everything worked, could read and write data no problem, then I disabled the device and deleted it from the Gateway. I look at the Gateway status and see this:

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/3/f/3fbf665ac2c38c133fc4da228a13acdfc87b3fc1.png)

There was never more than one TCP device at any time. Why is this happening and is there anything I can do other than restarting the Gateway?

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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:** [May 3, 2022, 2:41pm UTC](https://forum.inductiveautomation.com/t/deleted-tcp-device-high-cpu-use/59164/2 "2022-05-03T14:41:22Z")

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This looks like a bug. Can you get a thread dump before restarting?

Fwiw I think we fixed this in the most recent release.

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<div class="post-metadata">

**Author:** ![akettner](https://avatars.discourse-cdn.com/v4/letter/a/ac8455/32.png) [@akettner](https://forum.inductiveautomation.com/u/akettner)\
**Post date:** [May 3, 2022, 2:45pm UTC](https://forum.inductiveautomation.com/t/deleted-tcp-device-high-cpu-use/59164/3 "2022-05-03T14:45:08Z")

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I will do that.

We are running 7.9.17

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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:** [May 3, 2022, 3:03pm UTC](https://forum.inductiveautomation.com/t/deleted-tcp-device-high-cpu-use/59164/4 "2022-05-03T15:03:26Z")

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Ah… I meant the latest 8.1 release.

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<div class="post-metadata">

**Author:** ![akettner](https://avatars.discourse-cdn.com/v4/letter/a/ac8455/32.png) [@akettner](https://forum.inductiveautomation.com/u/akettner)\
**Post date:** [May 3, 2022, 3:09pm UTC](https://forum.inductiveautomation.com/t/deleted-tcp-device-high-cpu-use/59164/5 "2022-05-03T15:09:06Z")

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[Ignition-20220503-100159.txt](https://forum.inductiveautomation.com/uploads/short-url/5ZIsQ4eBcLJ2sCRyr5JNRVxi3al.txt) (189.5 KB)