# My node-red-contrib-opcua client is showing invalid endpoint, check that server has security policy # None

**URL:** <https://discourse.nodered.org/t/my-node-red-contrib-opcua-client-is-showing-invalid-endpoint-check-that-server-has-security-policy-none/81901>\
**Category:** General\
**Created:** [10 October 2023 05:48 UTC](https://discourse.nodered.org/t/my-node-red-contrib-opcua-client-is-showing-invalid-endpoint-check-that-server-has-security-policy-none/81901 "2023-10-10T05:48:52Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![ice\_soul](https://avatars.discourse-cdn.com/v4/letter/i/9de0a6/32.png) [@ice\_soul](https://discourse.nodered.org/u/ice_soul)\
**Post date:** [10 October 2023 05:48 UTC](https://discourse.nodered.org/t/my-node-red-contrib-opcua-client-is-showing-invalid-endpoint-check-that-server-has-security-policy-none/81901/1 "2023-10-10T05:48:52Z")

</div>

I tried to use the OPCUA client of ThingsGateway to test that it can connect to Kepserver EX6 successfully, but the node-red opcua client of 0.2.315 version can't do that, I don't set any security strategies, anyone who knows how to solve that? I tried to revert the version of opcua but still failed. My node version is v18.18.0

 ![20231010134809](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/d/b/dbd0cf345d694e52d68cfcea2008350882a9fcb5.png)

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [9 December 2023 05:49 UTC](https://discourse.nodered.org/t/my-node-red-contrib-opcua-client-is-showing-invalid-endpoint-check-that-server-has-security-policy-none/81901/2 "2023-12-09T05:49:49Z")

</div>

This topic was automatically closed 60 days after the last reply. New replies are no longer allowed.