Spark Crashing Randomly

I have a single user who is experiencing random crashes, solid black message window or only the title bar showing, and cannot find the problem. It seems to be caused by the client losing network connection for a split second and then failing to re-connect so it becomes unstable etc. I have already looked into any and all connection issues: NIC card,drivers, bad cable (both at the workstation and at the patch panel) and even switched over to WiFi with the same result. The workstation for all intensive purposes is not having connection issues, or at least none that are visible to the event viewer. Here is the error log:

Aug 04, 2017 10:17:44 AM org.jivesoftware.spark.util.log.Log warning

WARNING: PrivacyManager#ensureGloballyInvisibleListExists: Could not create PrivacyList invisible

org.jivesoftware.smack.SmackException$NotConnectedException: Client is not, or no longer, connected.

at org.jivesoftware.smack.tcp.XMPPTCPConnection$PacketWriter.throwNotConnectedExce ptionIfDoneAndResumptionNotPossible(XMPPTCPConnection.java:1252)

at org.jivesoftware.smack.tcp.XMPPTCPConnection.throwNotConnectedExceptionIfApprop riate(XMPPTCPConnection.java:344)

at org.jivesoftware.smack.AbstractXMPPConnection.sendStanza(AbstractXMPPConnection .java:618)

at org.jivesoftware.smack.AbstractXMPPConnection.createPacketCollectorAndSend(Abst ractXMPPConnection.java:712)

at org.jivesoftware.smack.AbstractXMPPConnection.createPacketCollectorAndSend(Abst ractXMPPConnection.java:701)

at org.jivesoftware.smackx.privacy.PrivacyListManager.setRequest(PrivacyListManage r.java:251)

at org.jivesoftware.smackx.privacy.PrivacyListManager.updatePrivacyList(PrivacyLis tManager.java:509)

at org.jivesoftware.smackx.privacy.PrivacyListManager.createPrivacyList(PrivacyLis tManager.java:489)

at org.jivesoftware.sparkimpl.plugin.privacy.PrivacyManager.ensureGloballyInvisibl eListExists(PrivacyManager.java:501)

at org.jivesoftware.sparkimpl.plugin.privacy.PrivacyManager.goToInvisible(PrivacyM anager.java:418)

at org.jivesoftware.spark.ui.status.StatusBar$1.doRun(StatusBar.java:144)

at org.jivesoftware.spark.util.SwingTimerTask.run(SwingTimerTask.java:31)

at java.awt.event.InvocationEvent.dispatch(Unknown Source)

at java.awt.EventQueue.dispatchEventImpl(Unknown Source)

at java.awt.EventQueue.access$500(Unknown Source)

at java.awt.EventQueue$3.run(Unknown Source)

at java.awt.EventQueue$3.run(Unknown Source)

at java.security.AccessController.doPrivileged(Native Method)

at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(U nknown Source)

at java.awt.EventQueue.dispatchEvent(Unknown Source)

at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)

at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)

at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)

at java.awt.EventDispatchThread.pumpEvents(Unknown Source)

at java.awt.EventDispatchThread.pumpEvents(Unknown Source)

at java.awt.EventDispatchThread.run(Unknown Source)

Any help with this would be greatly appreciated and let me know if more information is needed. Thanks.

Maybe it’s not crashing or is network related. That error is not related. Spark issue after Windows 7 update KB4034664

A fix for the mentioned bug https://support.microsoft.com/en-us/help/4039884/windows-7-update-kb4039884

I will give this a shot as nothing else has worked so far. Thank you.