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Re: [milo-dev] issues when reading opcua special Server node

Seems like something wrong with this server.

Could you possibly connect without security and capture this weird behavior with Wireshark?

On Fri, Aug 21, 2020 at 12:00 PM Lenovo K3 Owner <lenovo.k3.1.owner@xxxxxxxxx> wrote:
hello Milo-dev

I've just run into unexpected problem when reading values from opcua server

final ServerTypeNode serverNode = opcUaClient.getAddressSpace().getObjectNode(Identifiers.Server, ServerTypeNode.class).get();

this call results in server error that id cannot be found
UaException: status=Bad_NotFound, message=A requested item was not found or a search operation ended without success.

however attempt to browse the same id is a success

opcUaClient.getAddressSpace().browse(Identifiers.Server).get();

I am wondering about the possible problem behind this. Maybe something with permissions but attribute "RolePermissions", "UserRolePermissions", "AccessRestrictions" all have value "BadAttributeIdInvalid" in uaExpert.

Also I connected using uaExpert to 2 different servers (one of which has this problem) and compared all attribute values of Server node and all nodes that are above it for any difference and found nothing. I just cannot read Server node on one server and can do this on other.

Also I tried to subscribe for node values using uaExport (having specified ns=0, id=2253) and this also ended up with error (node id is wrong).

Maybe somebody has guesses ? Some wierd server configuration ?


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Mikalai
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