# Designer-Gateway connection unstable

**URL:** <https://forum.inductiveautomation.com/t/designer-gateway-connection-unstable/113538>\
**Category:** Ignition\
**Tags:** ignition81\
**Created:** [January 26, 2026, 8:15am UTC](https://forum.inductiveautomation.com/t/designer-gateway-connection-unstable/113538 "2026-01-26T08:15:17Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![pgmo](https://avatars.discourse-cdn.com/v4/letter/p/d07c76/32.png) [@pgmo](https://forum.inductiveautomation.com/u/pgmo)\
**Post date:** [January 26, 2026, 8:15am UTC](https://forum.inductiveautomation.com/t/designer-gateway-connection-unstable/113538/1 "2026-01-26T08:15:17Z")

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My customer let me program Ignition from _PC\_client_ that I reach through RDP. _PC\_client_’s Designer connects to the Ignition Gateway on _PC\_server_: what I’m experiencing is a very unstable connection - disconnections happen every 2-3 minutes and working is almost impossible. My customer says they have no networking problem, but I’ve never experienced such an awful working experience in 10 years Ignition projects!

In the designer console I find the following messages when it disconnects:

```python
09:10:30.798 [AWT-EventQueue-0] WARN com.inductiveautomation.ignition.client.gateway_interface.GatewayConnectionManager - Connection to Gateway lost, due to exception.
com.inductiveautomation.ignition.client.gateway_interface.GatewayException: Address already in use: no further information

09:10:30.868 [AWT-EventQueue-0] ERROR tags.manager - Error retrieving tag providers.
com.inductiveautomation.ignition.client.gateway_interface.GatewayException: Address already in use: no further information

```

Any suggestion?

Thanks in advance, regards

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**Author:** ![David\_Stone](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/david_stone/32/79749_2.png) [@David\_Stone](https://forum.inductiveautomation.com/u/David_Stone)\
**Post date:** [January 26, 2026, 11:26am UTC](https://forum.inductiveautomation.com/t/designer-gateway-connection-unstable/113538/2 "2026-01-26T11:26:14Z")

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Looks like a duplicate IP on the network to me.

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<div class="post-metadata">

**Author:** ![pgmo](https://avatars.discourse-cdn.com/v4/letter/p/d07c76/32.png) [@pgmo](https://forum.inductiveautomation.com/u/pgmo)\
**Post date:** [January 26, 2026, 11:28am UTC](https://forum.inductiveautomation.com/t/designer-gateway-connection-unstable/113538/3 "2026-01-26T11:28:15Z")

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> [@David\_Stone](#):
>
> Looks like a duplicate IP on the network to me

That is also my suspect: waiting for customer’s research about that.

Thanks

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**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [January 26, 2026, 12:42pm UTC](https://forum.inductiveautomation.com/t/designer-gateway-connection-unstable/113538/4 "2026-01-26T12:42:32Z")

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There have been past problems with RDP and designers, tracked to a java problem IIRC. But I haven't seen any lately--I think this was fixed.

What version is this?

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<div class="post-metadata">

**Author:** ![pgmo](https://avatars.discourse-cdn.com/v4/letter/p/d07c76/32.png) [@pgmo](https://forum.inductiveautomation.com/u/pgmo)\
**Post date:** [January 26, 2026, 3:12pm UTC](https://forum.inductiveautomation.com/t/designer-gateway-connection-unstable/113538/5 "2026-01-26T15:12:23Z")

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> [@pturmel](#):
>
> What version is this?

Hi @pturmel, it’s 8.1.37.

Thanks, regards

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**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\
**Post date:** [January 26, 2026, 4:46pm UTC](https://forum.inductiveautomation.com/t/designer-gateway-connection-unstable/113538/6 "2026-01-26T16:46:48Z")

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Are there any errors in the gateway's logs?

Agree with the general consensus. The way client/designer \<-\> gateway RPC works requires the gateway to respond to an incoming HTTP request from the client/designer, at a pretty constant rate.

It _might_ just be legitimate port exhaustion, if the sockets are being kept alive too long/there are too many incoming requests, though I would expect that to manifest as a different error.

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<div class="post-metadata">

**Author:** ![pgmo](https://avatars.discourse-cdn.com/v4/letter/p/d07c76/32.png) [@pgmo](https://forum.inductiveautomation.com/u/pgmo)\
**Post date:** [January 27, 2026, 9:43am UTC](https://forum.inductiveautomation.com/t/designer-gateway-connection-unstable/113538/7 "2026-01-27T09:43:44Z")

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> [@paul-griffith](#):
>
> Are there any errors in the gateway's logs?

Hi @paul-griffith , in the gateway log I find the same entries I find in the Designer console, which I post in this topic start.

Thanks, regards

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<div class="post-metadata">

**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\
**Post date:** [January 27, 2026, 4:20pm UTC](https://forum.inductiveautomation.com/t/designer-gateway-connection-unstable/113538/8 "2026-01-27T16:20:56Z")

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I was mostly wondering if there was any more detail/stacktrace, which might help identify the nature of the problem.
