# Can't discover OPC-UA endpoints **URL:** \ **Category:** Ignition\ **Created:** [July 13, 2023, 5:45am UTC](https://forum.inductiveautomation.com/t/cant-discover-opc-ua-endpoints/76296 "2023-07-13T05:45:45Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![chad\_leng](https://avatars.discourse-cdn.com/v4/letter/c/e95f7d/32.png) [@chad\_leng](https://forum.inductiveautomation.com/u/chad_leng)\ **Post date:** [July 13, 2023, 5:45am UTC](https://forum.inductiveautomation.com/t/cant-discover-opc-ua-endpoints/76296/1 "2023-07-13T05:45:45Z")
Hello, I'm a beginning user and I have some fault when trying to discover a third party OPC-UA server. Our ignition version： 7.9.7 (b2018032914) Our fault information: java.util.concurrent.ExecutionException: UaException: status=Bad\_Timeout, message=request timed out after 5000ms java.util.concurrent.CompletableFuture.reportGet(Unknown Source) java.util.concurrent.CompletableFuture.get(Unknown Source) com.inductiveautomation.xopc2.client.web.GetEndpointsPanel.onGetEndpoints(GetEndpointsPanel.java:177) com.inductiveautomation.xopc2.client.web.GetEndpointsPanel.access$100(GetEndpointsPanel.java:38) com.inductiveautomation.xopc2.client.web.GetEndpointsPanel$2.onSubmit(GetEndpointsPanel.java:75) org.apache.wicket.markup.html.form.Form$9.component(Form.java:1248) org.apache.wicket.markup.html.form.Form$9.component(Form.java:1242) org.apache.wicket.util.visit.Visits.visitPostOrderHelper(Visits.java:274) org.apache.wicket.util.visit.Visits.visitPostOrder(Visits.java:245) org.apache.wicket.markup.html.form.Form.delegateSubmit(Form.java:1241) org.apache.wicket.markup.html.form.Form.process(Form.java:923) org.apache.wicket.markup.html.form.Form.onFormSubmitted(Form.java:769) org.apache.wicket.markup.html.form.Form.onFormSubmitted(Form.java:702) sun.reflect.GeneratedMethodAccessor67.invoke(Unknown Source) sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) java.lang.reflect.Method.invoke(Unknown Source) org.apache.wicket.RequestListenerInterface.internalInvoke(RequestListenerInterface.java:258) org.apache.wicket.RequestListenerInterface.invoke(RequestListenerInterface.java:216) org.apache.wicket.core.request.handler.ListenerInterfaceRequestHandler.invokeListener(ListenerInterfaceRequestHandler.java:240) org.apache.wicket.core.request.handler.ListenerInterfaceRequestHandler.respond(ListenerInterfaceRequestHandler.java:226) org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:814) org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:64) org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:253) org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:210) org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:281) org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:188) org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:245) org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1668) org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:581) org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548) org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226) org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1160) org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:511) org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185) org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1092) org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) org.eclipse.jetty.server.handler.HandlerList.handle(HandlerList.java:52) org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134) org.eclipse.jetty.server.Server.handle(Server.java:518) org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:308) org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:244) org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:273) org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95) org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93) org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceAndRun(ExecuteProduceConsume.java:246) org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:156) org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:654) org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:572) java.lang.Thread.run(Unknown Source) org.eclipse.milo.opcua.stack.core.UaException: request timed out after 5000ms org.eclipse.milo.opcua.stack.client.UaTcpStackClient.lambda$scheduleRequestTimeout$13(UaTcpStackClient.java:326) io.netty.util.HashedWheelTimer$HashedWheelTimeout.expire(HashedWheelTimer.java:581) io.netty.util.HashedWheelTimer$HashedWheelBucket.expireTimeouts(HashedWheelTimer.java:655) io.netty.util.HashedWheelTimer$Worker.run(HashedWheelTimer.java:367) java.lang.Thread.run(Unknown Source) Thanks so much. ---
**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:** [July 13, 2023, 12:43pm UTC](https://forum.inductiveautomation.com/t/cant-discover-opc-ua-endpoints/76296/2 "2023-07-13T12:43:34Z")
Looks pretty simple: > [@chad\_leng](#): > > java.util.concurrent.ExecutionException: UaException: status=Bad\_Timeout, message=request timed out after 5000ms The target server simply did not respond. At all. This is usually a network routing or firewall issue. > [@chad\_leng](#): > > Our ignition version： 7.9.7 (b2018032914) You are extremely likely to also suffer from the elimination of older TLS protocols throughout most networks. You will likely need to upgrade to at least the last v7.9 release, and since that has been end-of-life for a while now, you need to plan for upgrading to v8.1.