Unable to establish a remote connection for OPCDA | Classic OPC: DA, A&E, HDA, XML-DA, etc. | Forum

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Unable to establish a remote connection for OPCDA
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Akshay Bajpayee
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07/30/2020
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11/27/2020 - 08:09
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When trying to connect to the OPCDA server using remote connection, receiving the below mentioned two errors. Have given Launch Access to both the Anonymous Logon as well as Everyone on both the Server and Client machine. 

Able to ping to the other machine but the Matrikon OPC Explorer on the Client machine is not able to connect to the OPC DA server and is giving the below error. 

 

Exception occurrred at : 11/25/2020 7:39:27 PM

Source : OpcNetApi

Message : CoCreateInstanceEx: The RPC server is unavailable.

Type : System.Runtime.InteropServices.ExternalException

Inner Exception :

Stack Trace : at Opc.Server.Connect(URL url, ConnectData connectData)

at Opc.Da.Server.Connect(URL url, ConnectData connectData)

at Opc.Server.Connect() 

 

Can someone please help?

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