# Failed to connect Ignition OPC-UA server using Sign And Encrypt mechanism via Python OPC-UA client

**URL:** <https://forum.inductiveautomation.com/t/failed-to-connect-ignition-opc-ua-server-using-sign-and-encrypt-mechanism-via-python-opc-ua-client/16865>\
**Category:** Ignition\
**Tags:** ignition79\
**Created:** [February 4, 2018, 9:12am UTC](https://forum.inductiveautomation.com/t/failed-to-connect-ignition-opc-ua-server-using-sign-and-encrypt-mechanism-via-python-opc-ua-client/16865 "2018-02-04T09:12:29Z")\
**Posts on this page:** 2\
**Page:** 2

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**Author:** ![vipo](https://avatars.discourse-cdn.com/v4/letter/v/eada6e/32.png) [@vipo](https://forum.inductiveautomation.com/u/vipo)\
**Post date:** [July 7, 2023, 2:19pm UTC](https://forum.inductiveautomation.com/t/failed-to-connect-ignition-opc-ua-server-using-sign-and-encrypt-mechanism-via-python-opc-ua-client/16865/21 "2023-07-07T14:19:08Z")

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I'm trying to connect with opcua-asyncio, with Anonymous access allowed. But I can't get it to work.  
I have set the Security Policy to "None,Basic256Sha256"  
Do I need to change Binding Addresses or Endpoint Addresses to make it work ?  
I'm doing this over a local network, so not localhost

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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:** [July 7, 2023, 2:22pm UTC](https://forum.inductiveautomation.com/t/failed-to-connect-ignition-opc-ua-server-using-sign-and-encrypt-mechanism-via-python-opc-ua-client/16865/22 "2023-07-07T14:22:43Z")

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Set the "Bind Addresses" setting to 0.0.0.0 and restart.

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