Client.connect().await() hangs intermittently

                Client client = Client.configure()

                        .eventLoopGroup(CBTestEnvironmentProvider.getEnvironment().ioPool())

                        .bucket(bucket)

                        .password(cbPassword)

                        .hostnames(cbNodes)

                        .connectionNameGenerator(() -> threadName)

                        .controlParam(DcpControl.Names.CONNECTION_BUFFER_SIZE, 16384)

                        .bufferAckWatermark(80)

                        .build();

                client.controlEventHandler(ReferenceCountUtil::release);

                client.dataEventHandler(event -> {

                    try {

                        client.acknowledgeBuffer(event);

                    } finally {

                        ReferenceCountUtil.release(event);

                    }

                });

                timedAwait("client.connect()", client.connect());

                timedAwait("client.disconnect()", client.disconnect());