# Opc client da/ua

**URL:** <https://community.factoryio.com/t/opc-client-da-ua/2542>\
**Category:** Drivers\
**Created:** [December 1, 2023, 11:45am UTC](https://community.factoryio.com/t/opc-client-da-ua/2542 "2023-12-01T11:45:45Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![therealmakako](https://avatars.discourse-cdn.com/v4/letter/t/278dde/32.png) [@therealmakako](https://community.factoryio.com/u/therealmakako)\
**Post date:** [December 1, 2023, 11:45am UTC](https://community.factoryio.com/t/opc-client-da-ua/2542/1 "2023-12-01T11:45:45Z")

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I’m trying to connect my Codesys project to FactoryIO. Once I make sure everything in my codesys looks right, I go to FactoryIO and, when selecting in the drivers window my pc at OPCServer, it appears the following error:

_OPC CLIENT DA/UA_  
_Endpoint does not support the user identity type provided_

And I do not have any idea about how to solve this and get both apps connected properly.  
I would appreciate some help.

Thanks!

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<div class="post-metadata">

**Author:** ![brunovgr](https://dub1.discourse-cdn.com/flex017/user_avatar/community.factoryio.com/brunovgr/32/12_2.png) [@brunovgr](https://community.factoryio.com/u/brunovgr)\
**Post date:** [December 4, 2023, 11:04am UTC](https://community.factoryio.com/t/opc-client-da-ua/2542/2 "2023-12-04T11:04:16Z")

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Hi @therealmakako,

It looks like your OPC server does not allow anonymous users. I recommend that you follow steps 13, 14 and 15 of this tutorial: [Setting up CODESYS OPC UA (SP17 or higher) - FACTORY I/O](https://docs.factoryio.com/tutorials/codesys/setting-up/codesys-opc-ua-sp17/#creating-the-project)