EasyUDPSocket.Error
From Xojo Documentation
Event
An error occurred.
This event replaces the TCPSocket error event. It functions the same, but instead this event passes the error code so you don’t have to check the LastErrorCode property. The last error code is passed a parameter.
Example
The following example is in the Error event handler. You can instead check the Code parameter.
MessageBox(EasyUDPSocket1.LastErrorCode.ToString)