# OPC UA NODE RED ERROR Message

**URL:** <https://discourse.nodered.org/t/opc-ua-node-red-error-message/77775>\
**Category:** General\
**Tags:** opcua\
**Created:** [21 April 2023 06:48 UTC](https://discourse.nodered.org/t/opc-ua-node-red-error-message/77775 "2023-04-21T06:48:58Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![MaxDP](https://avatars.discourse-cdn.com/v4/letter/m/d2c977/32.png) [@MaxDP](https://discourse.nodered.org/u/MaxDP)\
**Post date:** [21 April 2023 06:48 UTC](https://discourse.nodered.org/t/opc-ua-node-red-error-message/77775/1 "2023-04-21T06:48:58Z")

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Hello I am trying for a school project to creat a dashboard via Node red which gets his data from a opc ua client and the client gets it from a server. The problem is when i am connected to the other pc where the server is running via LAN and try to start node red it starts normally and gives me my Url but after that this error message comes:

client\_tcp\_transport :48 [NODE-OPCUA-E05] this transport protocol is not supported :opc.tpc:

I looked on Google but could not find anything useable. Could you please help me out? Thanks in advance 😉

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**Author:** ![Colin](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/colin/32/17040_2.png) [@Colin](https://discourse.nodered.org/u/Colin)\
**Post date:** [21 April 2023 08:43 UTC](https://discourse.nodered.org/t/opc-ua-node-red-error-message/77775/2 "2023-04-21T08:43:16Z")

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Welcome to the forum @MaxDP

> [@MaxDP](#):
>
> not supported :opc.tpc:

Have you got a typo in the setup somewhere? tpc instead of tcp?

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**Author:** ![mikakaraila](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/mikakaraila/32/37496_2.png) [@mikakaraila](https://discourse.nodered.org/u/mikakaraila)\
**Post date:** [26 April 2023 19:02 UTC](https://discourse.nodered.org/t/opc-ua-node-red-error-message/77775/3 "2023-04-26T19:02:18Z")

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OPC UA Server endpoint url format:  
opc.tcp:// **hostname** : **port** / **resource-path**

Example:  
opc.tcp://H7Q8Q13.mshome.net:53530/OPCUA/SimulationServer

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [25 June 2023 19:03 UTC](https://discourse.nodered.org/t/opc-ua-node-red-error-message/77775/4 "2023-06-25T19:03:03Z")

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