Some of the most common and often easiest issues to overcome involve connectivity from a PowerBuilder application or another client to EAServer. Connectivity issues may occur due to configuration issues in the client environment, failures on the server side, or even issues involving firewalls and network address translation.
The Connection object is the usual mechanism for establishing a client connection to EAServer from PowerBuilder. When the connection to server fails, the ConnectToServer method returns one of the error codes shown in Table 17.3. That information, along with the contents of the ErrText property of the Connection object, often reveals the root cause of the failure.