Article - CS324187
DCOM Hub for PTC Kepware Products
Modified: 12-Aug-2025
Applies To
- Kepware Server (formerly KEPServerEX) 5.20.396.0 to 6.18
- RedundancyMaster 2.0.47.0 to 2.0.128.0
- ThingWorx Kepware Server (legacy) 8.0 to 6.18
- LinkMaster 3.0.70.0 to 3.0.94.0
Description
- Various articles covering Instructions/Troubleshooting/Errors associated with DCOM Configuration
- Difficulties in connecting the OPC QuickClient from another machine to Kepserver
- OPC DA Connectivity not working
- OPC QuickClient cannot connect to OPC DA Server
- OPC DA Client Driver cannot connect to OPC DA Server
- OPC DA Server Interface cannot connect to OPC DA Client
- Switching the Runtime between Interactive and Service mode
- How to connect an OPC-DA client over a VPN connection
- Write transaction failure and/or incomplete data change events when connecting with another OPC Client
- Receiving "failed to obtain valid CLSID" error message
- Not able to write values through LinkMaster via Kepserver OPC DA Client driver
- After following all DCOM configuration guides the client application still cannot connect
- Client application is unable to see the OPC Server’s program ID
- Remote OPC DA Client unable to connect to KEPServerEX/ ThingWorx Industrial Connectivity
- How to setup and use the OPC Analyzer for troubleshooting the OPC DA Client driver
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