id summary reporter owner description type status milestone component version severity resolution keywords cc 8795 async_connect incorrectly reports success on failure benpope81@… chris_kohlhoff "I've found a regression between 1.53 to 1.54; if you compile boost/libs/asio/example/cpp11/chat/chat_client.cpp and point it at a host and port that doesn't exist or refuses the connection, instead of coming back with an error, such as host not found or connection refused, it reports success (on the conversion to bool). (you might want to embellish the example with a std::cout << error_code.message() << std::endl;) This appears to be the case across Linux, Darwin, iOS and Android. synchronous connect seems to work correctly (i.e., echo/blocking_tcp_echo_client.cpp)" Bugs reopened To Be Determined asio Boost 1.63.0 Regression