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  1. Forum
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  5. QuickOPC-UA in .NET
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  9. Status is BadNotReadable when connecting to a UA server that requires user+pass

Status is BadNotReadable when connecting to a UA server that requires user+pass

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29 Jul 2022 10:07 #11071 by support
Replied by support on topic Status is BadNotReadable when connecting to a UA server that requires user+pass
Hello.
The code looks correct.

Is there any other OPC UA client that can connect using the same username/password, and read the same node without getting the error? Unless there is a claim that other OPC UA client can do it but QuickOPC cannot, working with logs or communication captures is probably not going to reveal much useful.

Quite likely, this is server configuration issue. If the server allows the user to connect with the credentials you provided (which it does), it is then up to the server to decide whether that user can be permitted to read the node or not. And it has decided that it is not permitted. We do not generate the BadNotReadable error on our side.

Best regards

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29 Jul 2022 08:34 - 29 Jul 2022 10:02 #11070 by micham
Replied by micham on topic Status is BadNotReadable when connecting to a UA server that requires user+pass
Hi,

Yes. The username and password are supplied. See below.

 

localUser = server_properties.UA_Username

localPassword = server_properties.UA_Password

UA_Security_Annonymous = False

 

        Dim gdsEndpointDescriptor As UAEndpointDescriptor =

        New UAEndpointDescriptor(gServerNameURL) _

        .WithUserNameIdentity(localUser, localPassword)

 

        If gServerType = "UA" Then

        Try

attributeData2 = easyUAClient1.Read(gdsEndpointDescriptor, szItemName)

        Catch ex As UAException

exception = ex

        End Try

        End If

 


Is it possible for the OPC component to generate a log file so that we will have better understanding of what's going on?

Thanks.

Michael
Last edit: 29 Jul 2022 10:02 by support.

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28 Jul 2022 13:56 #11069 by support
Replied by support on topic Status is BadNotReadable when connecting to a UA server that requires user+pass
Hello.

Can you please clarify: Are you actually supplying the username+password to the server, or not?

When the server controls access to information based on the user's permission, then obviously not authenticating means that some information is not accessible.

Best regards

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28 Jul 2022 13:23 #11068 by micham
Status is BadNotReadable when connecting to a UA server that requires user+pass was created by micham
Hi,

We are getting the "BadNotReadable" when trying to connect to a UA server that requires username + password.
We have tried it with the EasdyOPCUAdemo and the results is the same. Can you please advise?

Thank you.

Michael

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  3. Discussions
  5. QuickOPC-UA in .NET
  7. Connections, Reconnections, Certificates
  9. Status is BadNotReadable when connecting to a UA server that requires user+pass
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