Citect Scada as OPC Client and #DCOM Error

Hi All,
I have National Instrument OPC Server and Citect scada as Client. The Problem is, when One Probe fails in the field then Citect Scada which is acting as Client goes down. All displays shows #DCOM.
When This promlem occured I checked OPC server with Matrikon Explorer, here every thing seems to fine.
I think I have to change some settings on Citect Scada's OPC driver, so that it can read tag values from OPC server all the time.
Any recommendations on how to change the settings on OPC driver in Citect scada.
Thanks in Advance.

I recommend taking a look at the following document to set your DCOM permissions correctly:

http://www.matrikonopc.com/dcom-configuration-opc.aspx

Let me know if you need any help.

Cheers,
Wassim

We had problems yesterday with an OPC DA server not bieng registered correctly... We found this tool (free ) and ran it it help solve a lot of problems

http://www.adosol.com/pc-22-15-opc-security-analyzer.aspx

@Mad4X4 ++ I like it.
This is my source for troubleshooting DCOM and OPC DA :
https://opcti.com/Video-Tutorials.aspx