When using the Qpid Proton C++ AMQ Client, 90% of the time client connections open in 8-20ms. Periodically a producer will take 30.008 - 30.020 seconds to open

Attached is a sample application that consistently demonstrates the connection delays.

This happens for approximately 90% of connections, however, the included code sample can reproduce the issue nearly 100% of the time because it creates multiple connections in quick succession.