Getting this error almost in every minute for an UFL interface. Any help will be appreciate...
As Gregor has suggested, you probably just need to add the server to the PI SDK Known Servers Table. I just wanted to point out that the message does not seem to be coming from the PI UFL Interface. The program says "eDataFeed.exe". This sounds likes a third-party or custom application.
I've moved your question to the place foreseen for Interface related discussions and questions.
According to the message the server used by this interface is not in the Known Servers Table. I consider this rather a warning and assume that the interface is servicing the points it should. To get rid of the message, please add the server to the Known Servers Table using PISDKUtility.exe
Perform KST Cleanup using PI SDK utility.
Try to remove the PI server using PI SDK utility and re - add it.
Retrieving data ...