# Unable to connect to OPC UA Server

**URL:** <https://discourse.nodered.org/t/unable-to-connect-to-opc-ua-server/77955>\
**Category:** General\
**Created:** [26 April 2023 12:41 UTC](https://discourse.nodered.org/t/unable-to-connect-to-opc-ua-server/77955 "2023-04-26T12:41:12Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![SinizowN](https://avatars.discourse-cdn.com/v4/letter/s/e36b37/32.png) [@SinizowN](https://discourse.nodered.org/u/SinizowN)\
**Post date:** [26 April 2023 12:41 UTC](https://discourse.nodered.org/t/unable-to-connect-to-opc-ua-server/77955/1 "2023-04-26T12:41:12Z")

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Hello everyone,

I am trying to connect to an OPC UA server present on another server.

I manage to connect to this server with software such as UAExpert or Matrikon. But when I try from node-red, unable to connect.

I get the following error:

 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/1/4/148c577bd3c346a679bfcacbaca10baf39e1bbca.png)

Can you help me?

Thanks,

Kevin

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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:** [26 April 2023 15:49 UTC](https://discourse.nodered.org/t/unable-to-connect-to-opc-ua-server/77955/2 "2023-04-26T15:49:39Z")

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That looks like too many slashes in the path. Use forward slashes and then you don't need to worry about escaping them. Forward slashes work fine in windows.

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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 15:49 UTC](https://discourse.nodered.org/t/unable-to-connect-to-opc-ua-server/77955/3 "2023-06-25T15:49:46Z")

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