# 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:** 11

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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:** [January 30, 2019, 12:00am UTC](https://forum.inductiveautomation.com/t/opc-ua-server-connections-and-tag-issues/22206/11 "2019-01-30T00:00:05Z")

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The servers connections that I removed were physically connected in the past.

Though I think [you're right](https://i.kym-cdn.com/entries/icons/original/000/027/475/Screen_Shot_2018-10-25_at_11.02.15_AM.png), the issue could be caused by some of the still-connected devices.

There are additional warnings of the form:

> "Failed to set publishingInterval=5000 on subscription ... scanclass details ...  
> UaServiceFaultException: status=BAD\_ServiceUnsupported, message=The server does not support the requested service."

That only happened after attempting to change the scanclass again.

Though it doesn't report which UA servers are causing the issue.

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