# OPC-UA Server Connections and Tag Issues

**URL:** <https://forum.inductiveautomation.com/t/opc-ua-server-connections-and-tag-issues/22206>\
**Category:** Ignition\
**Tags:** ignition79\
**Created:** [January 29, 2019, 11:10pm UTC](https://forum.inductiveautomation.com/t/opc-ua-server-connections-and-tag-issues/22206 "2019-01-29T23:10:39Z")\
**Posts on this page:** 1\
**Showing post:** 19

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**Author:** ![bfuson](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/bfuson/32/4597_2.png) [@bfuson](https://forum.inductiveautomation.com/u/bfuson)\
**Post date:** [February 25, 2019, 4:08pm UTC](https://forum.inductiveautomation.com/t/opc-ua-server-connections-and-tag-issues/22206/19 "2019-02-25T16:08:26Z")

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Disabling the OPC UA server connection does stop the warnings  
Strangely when re-enabling the connection all the tag values report correctly, but the Bad\_ServiceUnsupported messages resume and the values/timestamps no longer update after the initial read.

The sequence of UaSubscriptionChangeListener logs:

- [D] Synchronizing subscriptions…
- [D] Creating/deleting items on subscription ‘Scanclass ‘Default[default]’’
- [D] nodesToAdd.size()=0
- [D] nodesToRemove.size()=0
- [D] Setting MonitoringMode to Reporting for 16 of 16 items on subscription ‘Scanclass ‘Default[default]’’
- [W] Failed to set MonitoringMode.Reporting on 16 items on subscription ‘Scanclass ‘Default[default]’’: UaServiceFaultException: status=Bad\_ServiceUnsupported, message=The server does not support the requested service.

No code reported in the warning stack trace.

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