I have recently migrated our PI systems to Windows 2012 server and upgraded to PI 2012. As a consequence I have installed SAP Plant Connectivity v2.3 and am running an agent between MII v12.1 and PI 2012. I am seeing an error whenever I try and retrieve the list of tags for a tag query (e.g every time I open up the Tag Query Details screen on MII workbench, when it will immediately run an open query to retrieve the first 250 tags). The list of tags is eventually retrieved after about 2 minutes.
I have SAP Plant Connectivity v2.1 still installed on another server and before I switched to v2.3 I had configured v2.1 to run an agent between MII and the new PI system through this 3rd server. When I use this I see the same error but it does not result in a delay of 2 minutes so the issue has not been noticed when running previously (I have only ever had one agent or the other running - not both at the same time). The PCo v2.3 is installed on the new PI server. I attach some screen shots showing the error. Has anyone come across this before or knows what the problem is?
The config of the data server on MII is exactly the same except for the IP address. The config of Plant Connectivity is the same except for an additional setting on the new version (e.g Multithreading option - I have set to the default of 6) and selection of MII pre 12.2 (I am running v12.1)
