Tkarns24,

Which unit is issuing the connection closed message?

Generally, I do not attempt to keep or assume that a connection is kept open. After a burst of communication I'll explicitly close the connection. Servers don't usually like to keep a connection open forever. Each server has its own rules for this. In some cases a dummy task can be kept running in a timed loop that does nothing except force the server to keep the connection open. This is not foolproof, however, because, if the controller misses one of these loops for some reason, an assumption that the connection is always open will fail.