# 7.8.0:OPC-UA Server stops communicating but status says Good

**URL:** <https://forum.inductiveautomation.com/t/7-8-0-opc-ua-server-stops-communicating-but-status-says-good/12049>\
**Category:** Ignition\
**Created:** [August 19, 2016, 8:42pm UTC](https://forum.inductiveautomation.com/t/7-8-0-opc-ua-server-stops-communicating-but-status-says-good/12049 "2016-08-19T20:42:13Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![karnick](https://avatars.discourse-cdn.com/v4/letter/k/c37758/32.png) [@karnick](https://forum.inductiveautomation.com/u/karnick)\
**Post date:** [August 19, 2016, 8:42pm UTC](https://forum.inductiveautomation.com/t/7-8-0-opc-ua-server-stops-communicating-but-status-says-good/12049/1 "2016-08-19T20:42:13Z")

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I am using 7.8.0 and am running into a VERY serious intermittent problem. Every once in a while, all my objects with PLC tag bindings show a gray overlay, and my OPC-UA server still has a status of Connected. The only fix is to disable and re-enable the OPC-UA server.

Below is my wrapper.log which includes the time period the issue happened, up until I got the system working again (which is done by disabling the OPC-UA server and re-enabling it). I am not sure if any of these entries tell me anything useful, but it is a system that runs 24/7 and I won’t always be available to ‘fix’ it.

Is this a known issue in 7.8.0? If so I can upgrade to 7.8.3 without any issues, but I would need to know that this was specifically addressed and resolved in 7.8.3 (we can’t really do an upgrade and just “hope it fixes it”).

Wrapper.log:

`INFO | jvm 1 | 2016/08/19 16:02:28 | INFO [Projects$ProjectChangeMonitor] [16:02:28,765]: Starting up client project monitor. project=AntiDiversion, uuid=e9552c93-0ad3-0bf9-5343-87d417cdfb62, editCount=2328, scope=4, version=Published
INFO | jvm 1 | 2016/08/19 16:25:23 | INFO [Projects$ProjectChangeMonitor] [16:25:23,772]: Starting up client project monitor. project=AntiDiversion, uuid=e9552c93-0ad3-0bf9-5343-87d417cdfb62, editCount=2328, scope=4, version=Published
INFO | jvm 1 | 2016/08/19 16:26:15 | INFO [Projects$ProjectChangeMonitor] [16:26:15,789]: Starting up client project monitor. project=AntiDiversion, uuid=e9552c93-0ad3-0bf9-5343-87d417cdfb62, editCount=2328, scope=4, version=Published
INFO | jvm 1 | 2016/08/19 16:28:42 | INFO [PropertiesFactory] [16:28:42,863]: Loading properties files from jar:file:/C:/Program%20Files/Inductive%20Automation/Ignition/temp/gateway1571443728422466585.jar!/com/inductiveautomation/ignition/gateway/web/pages/config/SystemStatus.properties with loader org.apache.wicket.resource.IsoPropertiesFilePropertiesLoader@74b1731b
INFO | jvm 1 | 2016/08/19 16:28:55 | INFO [PropertiesFactory] [16:28:55,632]: Loading properties files from jar:file:/C:/Program%20Files/Inductive%20Automation/Ignition/webserver/webapps/main/WEB-INF/lib/wicket-core-6.1.1.jar!/org/apache/wicket/Application.properties with loader org.apache.wicket.resource.IsoPropertiesFilePropertiesLoader@74b1731b
INFO | jvm 1 | 2016/08/19 16:28:55 | INFO [PropertiesFactory] [16:28:55,641]: Loading properties files from jar:file:/C:/Program%20Files/Inductive%20Automation/Ignition/webserver/webapps/main/WEB-INF/lib/wicket-extensions-6.1.1.jar!/org/apache/wicket/extensions/Initializer.properties with loader org.apache.wicket.resource.IsoPropertiesFilePropertiesLoader@74b1731b
INFO | jvm 1 | 2016/08/19 16:29:16 | INFO [ActivateSessionService] [16:29:16,365]: User "{schedule=Always, firstname=, notes=, language=null, username=opcuauser, lastname=}" connected.
INFO | jvm 1 | 2016/08/19 16:29:20 | INFO [ActivateSessionService] [16:29:20,643]: User "{schedule=Always, firstname=, notes=, language=null, username=opcuauser, lastname=}" connected.
INFO | jvm 1 | 2016/08/19 16:29:56 | INFO [LocalDBManagerImpl] [16:29:56,077]: Creating auto-backup of internal database "settings"...
INFO | jvm 1 | 2016/08/19 16:29:56 | INFO [ENGINE] [16:29:56,077]: checkpointClose start
INFO | jvm 1 | 2016/08/19 16:29:56 | INFO [ENGINE] [16:29:56,077]: checkpointClose synched
INFO | jvm 1 | 2016/08/19 16:29:56 | INFO [ENGINE] [16:29:56,102]: checkpointClose script done
INFO | jvm 1 | 2016/08/19 16:29:56 | INFO [ENGINE] [16:29:56,102]: dataFileCache commit start
INFO | jvm 1 | 2016/08/19 16:29:56 | INFO [ENGINE] [16:29:56,107]: dataFileCache commit end
INFO | jvm 1 | 2016/08/19 16:29:56 | INFO [ENGINE] [16:29:56,112]: checkpointClose end
INFO | jvm 1 | 2016/08/19 16:29:56 | INFO [ENGINE] [16:29:56,112]: Initiating backup of instance 'settings'
INFO | jvm 1 | 2016/08/19 16:29:56 | 1 / 4 settings.properties... 
INFO | jvm 1 | 2016/08/19 16:29:56 | 2 / 4 settings.script... 
INFO | jvm 1 | 2016/08/19 16:29:56 | 3 / 4 settings.data... 
INFO | jvm 1 | 2016/08/19 16:29:56 | 4 / 4 settings.lobs... 
INFO | jvm 1 | 2016/08/19 16:30:03 | 
INFO | jvm 1 | 2016/08/19 16:30:03 | INFO [ENGINE] [16:30:03,822]: Successfully backed up instance 'settings' to 'C:\\Program Files\\Inductive Automation\\Ignition\\data\\db\\autobackup\\db_20160819_162956.tar.gz'
INFO | jvm 1 | 2016/08/19 16:30:03 | INFO [LocalDBManagerImpl] [16:30:03,823]: Created auto-backup of internal database "settings" in 7 seconds
INFO | jvm 1 | 2016/08/19 16:30:23 | INFO [ActivateSessionService] [16:30:23,746]: User "{schedule=Always, firstname=, notes=, language=null, username=opcuauser, lastname=}" connected.
INFO | jvm 1 | 2016/08/19 16:30:23 | WARN [PublishService] [16:30:23,749]: Returning ServiceFault for request: [PublishRequest requestHandle=7751885]. StatusCode=StatusCode[Severity=Bad, Subcode=Bad_NoSubscription]
INFO | jvm 1 | 2016/08/19 16:30:33 | WARN [PublishService] [16:30:33,726]: Returning ServiceFault for request: [PublishRequest requestHandle=7751886]. StatusCode=StatusCode[Severity=Bad, Subcode=Bad_NoSubscription]
INFO | jvm 1 | 2016/08/19 16:30:43 | WARN [PublishService] [16:30:43,727]: Returning ServiceFault for request: [PublishRequest requestHandle=7751887]. StatusCode=StatusCode[Severity=Bad, Subcode=Bad_NoSubscription]
INFO | jvm 1 | 2016/08/19 16:30:53 | WARN [PublishService] [16:30:53,726]: Returning ServiceFault for request: [PublishRequest requestHandle=7751888]. StatusCode=StatusCode[Severity=Bad, Subcode=Bad_NoSubscription]
INFO | jvm 1 | 2016/08/19 16:31:16 | INFO [UaSessionManager] [16:31:16,293]: Closing timed out session: [UaSession name:ignition_Ignition OPC-UA Server id:ns=1337:i=1 activated:false]. Elapsed=120001, sessionTimeout=120000.0.
INFO | jvm 1 | 2016/08/19 16:31:20 | INFO [UaSessionManager] [16:31:20,581]: Closing timed out session: [UaSession name:ignition_Ignition OPC-UA Server id:ns=1337:i=3 activated:false]. Elapsed=120001, sessionTimeout=120000.0.
`

Thank you!

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**Author:** ![accyroy](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/accyroy/32/3386_2.png) [@accyroy](https://forum.inductiveautomation.com/u/accyroy)\
**Post date:** [August 20, 2016, 3:51pm UTC](https://forum.inductiveautomation.com/t/7-8-0-opc-ua-server-stops-communicating-but-status-says-good/12049/2 "2016-08-20T15:51:51Z")

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There was indeed a problem with the OPC-UA module in version 7.8.0. This was fixed in 7.8.1, so upgrading to 7.8.3 should fix your issue.

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**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [August 22, 2016, 3:31pm UTC](https://forum.inductiveautomation.com/t/7-8-0-opc-ua-server-stops-communicating-but-status-says-good/12049/3 "2016-08-22T15:31:20Z")

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Yeah, we definitely fixed a few problems relating to UA connectivity.

As of 7.8.3 the only known issue is with connections to Kepware but the bug is on their side.

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**Author:** ![karnick](https://avatars.discourse-cdn.com/v4/letter/k/c37758/32.png) [@karnick](https://forum.inductiveautomation.com/u/karnick)\
**Post date:** [September 1, 2016, 6:14pm UTC](https://forum.inductiveautomation.com/t/7-8-0-opc-ua-server-stops-communicating-but-status-says-good/12049/4 "2016-09-01T18:14:41Z")

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Thank you both. I’ll give it a shot
