# Kepware OPC DA - the OPC Server is faulted **URL:** \ **Category:** Ignition\ **Created:** [February 24, 2015, 9:34pm UTC](https://forum.inductiveautomation.com/t/kepware-opc-da-the-opc-server-is-faulted/9742 "2015-02-24T21:34:21Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![TimOSullivan](https://avatars.discourse-cdn.com/v4/letter/t/45deac/32.png) [@TimOSullivan](https://forum.inductiveautomation.com/u/TimOSullivan)\ **Post date:** [February 24, 2015, 9:34pm UTC](https://forum.inductiveautomation.com/t/kepware-opc-da-the-opc-server-is-faulted/9742/1 "2015-02-24T21:34:21Z")
Hi, I have a Kepware V4.5 OPC DA server on a PC that handles all IO to Wonderware InTouch PCs. I’ve SQL Bridge running on a Windows Server that also communicates with Kepware. Ignition connects to Kepware and shows connected. All the tags in the IA Designer are updating correctly. However, if I try to write to a tag from Ignition, I get the following error: ‘Error writing to Trigger V1331.Value Could not complete the Operation - the OPC Server is faulted’ I suspect the issue is with a DCOM or Firewall setting on the Server but I can’t find the problem. If I use Quick Client from the Ignition web page, I can read and write correctly. Anybody have any pointers. Thanks, Tim ---
**Author:** ![pdibenedetto](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pdibenedetto/32/6364_2.png) [@pdibenedetto](https://forum.inductiveautomation.com/u/pdibenedetto)\ **Post date:** [February 24, 2015, 11:17pm UTC](https://forum.inductiveautomation.com/t/kepware-opc-da-the-opc-server-is-faulted/9742/2 "2015-02-24T23:17:35Z")
Avoid DCOM (if you can). Use [this](http://marketplace.inductiveautomation.com/moduledetail?5&moduleId=47) module and try something like [this](http://computingwithoutboundaries.blogspot.com.ar/2012/04/opc-ua-renders-traditional-opc.html), if is possible. Regards,