have data transfer between vb application and web service. The application is located on the local network and connects to the Internet through a gateway. ADSL connection. The web service is located on a remote server. The strange thing is that data transfer sometimes works, and sometimes not. When it does not work, it throws an exception like "System.Net.WebException" and the message "Operation has timed out." And it does not depend on the amount of data. And also sometimes it causes an error, for example, the connection is completed. When I restart my test server, the problem is fixed, but what can cause this? Test server firewall is closed.
source
share