so I found out that the delegate (NSURLConnectionDataDelegate) method - connection:didSendBodyData:totalBytesWritten:totalBytesExpectedToWrite: is never called when NetworkEye is enabled. So in connections that need progress tracking I disable NetworkEye first. I tried to fix it myself but I can't see a way of doing so with the current library design. I hope that you can find a way around it. Keep up the good work (Y)