# Client Error Authenticating - but no problem logging in to Designer and Gateway!

**URL:** <https://forum.inductiveautomation.com/t/client-error-authenticating-but-no-problem-logging-in-to-designer-and-gateway/80877>\
**Category:** Ignition\
**Tags:** ignition81, vision\
**Created:** [October 23, 2023, 8:19pm UTC](https://forum.inductiveautomation.com/t/client-error-authenticating-but-no-problem-logging-in-to-designer-and-gateway/80877 "2023-10-23T20:19:19Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![TLTriplett](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/tltriplett/32/3722_2.png) [@TLTriplett](https://forum.inductiveautomation.com/u/TLTriplett)\
**Post date:** [October 23, 2023, 8:19pm UTC](https://forum.inductiveautomation.com/t/client-error-authenticating-but-no-problem-logging-in-to-designer-and-gateway/80877/1 "2023-10-23T20:19:19Z")

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Administrator credentials work for logging in to the Gateway, and for Designer, but fails when trying to launch the Vision Client, with following error:

```auto
com.inductiveautomation.ignition.client.gateway_interface.GatewayException: Error authenticating.
	at com.inductiveautomation.ignition.client.gateway_interface.GatewayInterface.newGatewayException(GatewayInterface.java:360)
	at com.inductiveautomation.ignition.client.gateway_interface.GatewayInterface.sendMessage(GatewayInterface.java:334)
	at com.inductiveautomation.ignition.client.gateway_interface.GatewayInterface.sendMessage(GatewayInterface.java:287)
	at com.inductiveautomation.ignition.client.gateway_interface.GatewayInterface.invoke(GatewayInterface.java:967)
	at com.inductiveautomation.factorypmi.application.runtime.ClientGatewayConnection.loginClient(ClientGatewayConnection.java:97)
	at com.inductiveautomation.factorypmi.application.runtime.ClientGatewayConnection.doLogin(ClientGatewayConnection.java:174)
	at com.inductiveautomation.ignition.client.gateway_interface.AbstractGatewayConnection.login(AbstractGatewayConnection.java:966)
	at com.inductiveautomation.factorypmi.application.runtime.ClientPanel$ClassicLoginAction$LoginTask.run(ClientPanel.java:689)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: com.inductiveautomation.ignition.gateway.servlets.gateway.functions.GatewayFunctionException: Error authenticating.
	at com.inductiveautomation.ignition.gateway.servlets.gateway.functions.Login.client(Login.java:554)
	at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(null)
	at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(null)
	at java.lang.reflect.Method.invoke(null)
	at com.inductiveautomation.ignition.gateway.servlets.gateway.AbstractGatewayFunction.invoke(AbstractGatewayFunction.java:228)
	at com.inductiveautomation.ignition.gateway.servlets.Gateway.doPost(Gateway.java:435)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:523)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:590)
	at com.inductiveautomation.ignition.gateway.bootstrap.MapServlet.service(MapServlet.java:86)
	at org.eclipse.jetty.servlet.ServletHolder$NotAsync.service(ServletHolder.java:1410)
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:764)
	at org.eclipse.jetty.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1665)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:527)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:131)
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:578)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:223)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1570)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1384)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:176)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:484)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1543)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:174)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1306)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:129)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
	at com.inductiveautomation.catapult.handlers.RemoteHostNameLookupHandler.handle(RemoteHostNameLookupHandler.java:121)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
	at org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:301)
	at org.eclipse.jetty.server.handler.HandlerList.handle(HandlerList.java:51)
	at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:141)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
	at org.eclipse.jetty.server.Server.handle(Server.java:563)
	at org.eclipse.jetty.server.HttpChannel.lambda$handle$0(HttpChannel.java:505)
	at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:762)
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:497)
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:282)
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:314)
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:100)
	at org.eclipse.jetty.io.SelectableChannelEndPoint$1.run(SelectableChannelEndPoint.java:53)
	at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.runTask(AdaptiveExecutionStrategy.java:416)
	at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.consumeTask(AdaptiveExecutionStrategy.java:385)
	at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.tryProduce(AdaptiveExecutionStrategy.java:272)
	at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.lambda$new$0(AdaptiveExecutionStrategy.java:140)
	at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:411)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:969)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1194)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1149)
	at java.lang.Thread.run(null)

Ignition v8.1.32 (b2023091211)
Java: Azul Systems, Inc. 11.0.18

```

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<div class="post-metadata">

**Author:** ![TLTriplett](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/tltriplett/32/3722_2.png) [@TLTriplett](https://forum.inductiveautomation.com/u/TLTriplett)\
**Post date:** [October 24, 2023, 7:34pm UTC](https://forum.inductiveautomation.com/t/client-error-authenticating-but-no-problem-logging-in-to-designer-and-gateway/80877/2 "2023-10-24T19:34:13Z")

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This issue was that the User Source was not set in the Project Properties | General tab. A few other settings were missing as well, all as the result of 'copying' a project from another area of the plant.

All is working well now.