# OPC-UA Client connection issues

**URL:** <https://forum.inductiveautomation.com/t/opc-ua-client-connection-issues/79799>\
**Category:** Ignition\
**Created:** [September 28, 2023, 4:25pm UTC](https://forum.inductiveautomation.com/t/opc-ua-client-connection-issues/79799 "2023-09-28T16:25:37Z")\
**Posts on this page:** 1\
**Showing post:** 18

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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:** [September 29, 2023, 8:43pm UTC](https://forum.inductiveautomation.com/t/opc-ua-client-connection-issues/79799/18 "2023-09-29T20:43:58Z")

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If they want to get data out of Ignition, into the MES, they should be client.

If you want to get data out of the MES system, into Ignition, they should be server.

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