# OPC Connection Fault - Type "Production\_ServerType" is not a known server type

**URL:** <https://forum.inductiveautomation.com/t/opc-connection-fault-type-production-servertype-is-not-a-known-server-type/43007>\
**Category:** Ignition\
**Tags:** ignition79\
**Created:** [February 4, 2021, 8:54am UTC](https://forum.inductiveautomation.com/t/opc-connection-fault-type-production-servertype-is-not-a-known-server-type/43007 "2021-02-04T08:54:26Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![valet81](https://avatars.discourse-cdn.com/v4/letter/v/c77e96/32.png) [@valet81](https://forum.inductiveautomation.com/u/valet81)\
**Post date:** [February 4, 2021, 8:54am UTC](https://forum.inductiveautomation.com/t/opc-connection-fault-type-production-servertype-is-not-a-known-server-type/43007/1 "2021-02-04T08:54:26Z")

</div>

Hi all,

Quick question about something that is not stopping me to work but is a bit annoying and not clean.  
When I first installed Ignition, I added the some Sepasoft modules to try OEE etc, and following the demo example I installed the simulation “Production” OPC Connection.

Now some time ago I tried to remove it but I probably did something wrong and since then I keep getting a OPC Connection Fault error.

 ![IgnitionError1png](https://us1.discourse-cdn.com/inductiveautomation/original/3X/c/5/c55cffbc396cdc11d548c4b979d863067cbb8103.png)  
 ![IgnitionError2png](https://us1.discourse-cdn.com/inductiveautomation/original/3X/5/6/56055883898ed845dba1c513e7b1f0bcf8cff480.png)

this is the fault description

```auto
java.lang.Exception: OPC server connection is faulted. Type "Production_ServerType" is not a known server type.
	at com.inductiveautomation.ignition.gateway.opc.OpcManagerImpl.create(OpcManagerImpl.java:194)
	at com.inductiveautomation.ignition.gateway.opc.OpcManagerImpl.addAllServers(OpcManagerImpl.java:162)
	at com.inductiveautomation.ignition.gateway.opc.OpcManagerImpl.startup(OpcManagerImpl.java:105)
	at com.inductiveautomation.ignition.gateway.SRContext.startupInternal(SRContext.java:1351)
	at com.inductiveautomation.ignition.gateway.redundancy.RedundancyManagerImpl.startup(RedundancyManagerImpl.java:234)
	at com.inductiveautomation.ignition.gateway.SRContext.asyncInit(SRContext.java:1016)
	at com.inductiveautomation.ignition.gateway.SRContext.access$300(SRContext.java:289)
	at com.inductiveautomation.ignition.gateway.SRContext$2.run(SRContext.java:774)
	at com.inductiveautomation.ignition.common.execution.impl.BasicExecutionEngine$ThrowableCatchingRunnable.run(BasicExecutionEngine.java:518)
	at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
	at java.util.concurrent.FutureTask.run(Unknown Source)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(Unknown Source)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)

7.9.17 (b2021010514)
Oracle Corporation 1.8.0_181

```

Is there a way to fix this and remove it properly?

Thank you

---

<div class="post-metadata">

**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:** [February 4, 2021, 1:54pm UTC](https://forum.inductiveautomation.com/t/opc-connection-fault-type-production-servertype-is-not-a-known-server-type/43007/2 "2021-02-04T13:54:47Z")

</div>

You’ll have to re-install the OEE module, then delete that OPC connection. And then you can uninstall the OEE module cleanly.

---

<div class="post-metadata">

**Author:** ![valet81](https://avatars.discourse-cdn.com/v4/letter/v/c77e96/32.png) [@valet81](https://forum.inductiveautomation.com/u/valet81)\
**Post date:** [February 4, 2021, 3:36pm UTC](https://forum.inductiveautomation.com/t/opc-connection-fault-type-production-servertype-is-not-a-known-server-type/43007/3 "2021-02-04T15:36:19Z")

</div>

Thank you.  
This fixed the issue.