its working with synchronous mode, but what about subscribeItem is it synchronous or asynchronous?

Any ideas for this?

1. Remote, but in same network
2. Console App
3. From what i know all readings are asynchronous, but i cant check source code, so im not 100% sure
4. just InstanceParameters.Timeouts.ReadItem, i was trying with diffrent timeouts, but same exception

Hi,

ive started to use your dlls (eval at the moment) and im trying to read some data from Tac OPC server.
I can see all branches etc, but when i try to read any data from Item ive got an error:
"Read not completed. This error indicates that it could not be verified that the requested read operation was completed during the timeout period. It is possible that the read operation will actually succeed or fail, but later. Increase the timeout period if you want to obtain positive or negative indication of the operation outcome. Other reason for this error may be that under heavy loads, topic request or response queue is overflowing. Check the event log for queue overflow errors (if event logging is supported by the product and enabled)."

I can read from other apps, so there is no problems with OPC Server, i can also read Properties from Item, but cant read value(ReadItemValue or ReadItem). I was using your console example (C#).

Regards,
Piotr