# Ignition Exchange - Network Device Ping UDT problem

**URL:** <https://forum.inductiveautomation.com/t/ignition-exchange-network-device-ping-udt-problem/86742>\
**Category:** Ignition\
**Created:** [March 4, 2024, 8:12am UTC](https://forum.inductiveautomation.com/t/ignition-exchange-network-device-ping-udt-problem/86742 "2024-03-04T08:12:37Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![Aiasa21](https://avatars.discourse-cdn.com/v4/letter/a/aeb1de/32.png) [@Aiasa21](https://forum.inductiveautomation.com/u/Aiasa21)\
**Post date:** [March 4, 2024, 8:12am UTC](https://forum.inductiveautomation.com/t/ignition-exchange-network-device-ping-udt-problem/86742/1 "2024-03-04T08:12:37Z")

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Good morning, I add the UDT in my project and it works great to check the status of the connected devices. This is the link: [Ping UDT](https://inductiveautomation.com/exchange/2235/overview)

The problem is that sometimes I have some disconnection counts but if I check on the PLC log actually they are not true.

I tried to increase the rate of the ping from 1000ms to 2000ms and the timeout from 1000ms to 3000ms just and however I have miscount. I check this on multiple PLC logs and in none I have this disconnections.

Thank you for the help

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**Author:** ![justinedwards.jle](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/justinedwards.jle/32/37854_2.png) [@justinedwards.jle](https://forum.inductiveautomation.com/u/justinedwards.jle)\
**Post date:** [March 5, 2024, 1:26pm UTC](https://forum.inductiveautomation.com/t/ignition-exchange-network-device-ping-udt-problem/86742/2 "2024-03-05T13:26:39Z")

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Perhaps the author of the UDT @Arnaud_Declerck can help with this.

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**Author:** ![Arnaud\_Declerck](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/arnaud_declerck/32/44872_2.png) [@Arnaud\_Declerck](https://forum.inductiveautomation.com/u/Arnaud_Declerck)\
**Post date:** [March 6, 2024, 5:30am UTC](https://forum.inductiveautomation.com/t/ignition-exchange-network-device-ping-udt-problem/86742/3 "2024-03-06T05:30:32Z")

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Hi @Aiasa21,

I will take a look but no one complains about this before.  
To be sure that I test like you setup I need some information

- what OS are you using
- what version of ignition are you using.
- how is your network configuration
- what type of plc do you try to monitor

Regards

Arnaud

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**Author:** ![Aiasa21](https://avatars.discourse-cdn.com/v4/letter/a/aeb1de/32.png) [@Aiasa21](https://forum.inductiveautomation.com/u/Aiasa21)\
**Post date:** [March 6, 2024, 7:29am UTC](https://forum.inductiveautomation.com/t/ignition-exchange-network-device-ping-udt-problem/86742/4 "2024-03-06T07:29:06Z")

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Thank you @justinedwards.jle for the help.

Hi @Arnaud_Declerck, thank you too, here you have some information.

- Ignition is installed on a Windows Server 2019
- Ignition Platform 8.1.23
- All the PLCs in the industry and the server are installed under different vlan (Do you need need some specific info?)
- Most are Omron NJ/NX type

Thanks for the help

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**Author:** ![Arnaud\_Declerck](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/arnaud_declerck/32/44872_2.png) [@Arnaud\_Declerck](https://forum.inductiveautomation.com/u/Arnaud_Declerck)\
**Post date:** [March 6, 2024, 7:58am UTC](https://forum.inductiveautomation.com/t/ignition-exchange-network-device-ping-udt-problem/86742/5 "2024-03-06T07:58:56Z")

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@Aiasa21,  
I will try to replicate as close as possible your layout.  
Do you mean vlan instead of wlan ? (I don't think extra info about it is needed.)

Regards

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**Author:** ![Aiasa21](https://avatars.discourse-cdn.com/v4/letter/a/aeb1de/32.png) [@Aiasa21](https://forum.inductiveautomation.com/u/Aiasa21)\
**Post date:** [March 6, 2024, 8:00am UTC](https://forum.inductiveautomation.com/t/ignition-exchange-network-device-ping-udt-problem/86742/6 "2024-03-06T08:00:47Z")

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Yes sorry vlan, you're right.

Thank you

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**Author:** ![Arnaud\_Declerck](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/arnaud_declerck/32/44872_2.png) [@Arnaud\_Declerck](https://forum.inductiveautomation.com/u/Arnaud_Declerck)\
**Post date:** [March 8, 2024, 12:25am UTC](https://forum.inductiveautomation.com/t/ignition-exchange-network-device-ping-udt-problem/86742/7 "2024-03-08T00:25:45Z")

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Hi @Aiasa21

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/1/f/1ff07066c0814a8c54ab24e1e9d5d943bcd8ad82.png)

I've tried to replicate as close as possible your situation.

- Win 19 server in one vlan with ignition 8.1.23
- PLC Compact logix (i don't have a omrom plc) in another Vlan
- Server in the same Vlan as the windows one

It has been running for almost two day and not disconnect count coming. I even tried to do multiple download to the plc to see if that have an impact.

I don't thing this come from the code but more from your config.

Hope this help and don't hesitate if needed or post some feedback if you find something

Regards

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<div class="post-metadata">

**Author:** ![Aiasa21](https://avatars.discourse-cdn.com/v4/letter/a/aeb1de/32.png) [@Aiasa21](https://forum.inductiveautomation.com/u/Aiasa21)\
**Post date:** [March 8, 2024, 8:22am UTC](https://forum.inductiveautomation.com/t/ignition-exchange-network-device-ping-udt-problem/86742/8 "2024-03-08T08:22:41Z")

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Hi @Arnaud_Declerck, thank you for your tests.

As you say probably we have something strange on the network that trigger this "fake" errors.

Thanks again, I appreciate you help.  
Have a nice day
