diff --git a/test/task.h b/test/task.h
index 82483207..67eb9804 100644
--- a/test/task.h
+++ b/test/task.h
@@ -221,4 +221,12 @@ UNUSED static int can_ipv6(void) {
   "Cygwin runtime does not support sending handles on pipes."
 #endif
 
+#if defined(__MSYS__)
+# define NO_SELF_CONNECT \
+  "MSYS2 runtime hangs on listen+connect in same process."
+#elif defined(__CYGWIN__)
+# define NO_SELF_CONNECT \
+  "Cygwin runtime hangs on listen+connect in same process."
+#endif
+
 #endif /* TASK_H_ */
diff --git a/test/test-pipe-bind-error.c b/test/test-pipe-bind-error.c
index 38b57db6..9cf93165 100644
--- a/test/test-pipe-bind-error.c
+++ b/test/test-pipe-bind-error.c
@@ -116,6 +116,9 @@ TEST_IMPL(pipe_bind_error_inval) {
 
 
 TEST_IMPL(pipe_listen_without_bind) {
+#if defined(NO_SELF_CONNECT)
+  RETURN_SKIP(NO_SELF_CONNECT);
+#endif
   uv_pipe_t server;
   int r;
 
diff --git a/test/test-pipe-connect-multiple.c b/test/test-pipe-connect-multiple.c
index 3de5a9a0..0a60d4a9 100644
--- a/test/test-pipe-connect-multiple.c
+++ b/test/test-pipe-connect-multiple.c
@@ -70,6 +70,9 @@ static void connect_cb(uv_connect_t* connect_req, int status) {
 
 
 TEST_IMPL(pipe_connect_multiple) {
+#if defined(NO_SELF_CONNECT)
+  RETURN_SKIP(NO_SELF_CONNECT);
+#endif
   int i;
   int r;
   uv_loop_t* loop;
diff --git a/test/test-pipe-getsockname.c b/test/test-pipe-getsockname.c
index 4b4ceccc..d1628a67 100644
--- a/test/test-pipe-getsockname.c
+++ b/test/test-pipe-getsockname.c
@@ -87,6 +87,9 @@ static void pipe_server_connection_cb(uv_stream_t* handle, int status) {
 
 
 TEST_IMPL(pipe_getsockname) {
+#if defined(NO_SELF_CONNECT)
+  RETURN_SKIP(NO_SELF_CONNECT);
+#endif
   uv_loop_t* loop;
   char buf[1024];
   size_t len;
diff --git a/test/test-pipe-server-close.c b/test/test-pipe-server-close.c
index 1dcdfffa..ea9977dd 100644
--- a/test/test-pipe-server-close.c
+++ b/test/test-pipe-server-close.c
@@ -61,6 +61,9 @@ static void pipe_server_connection_cb(uv_stream_t* handle, int status) {
 
 
 TEST_IMPL(pipe_server_close) {
+#if defined(NO_SELF_CONNECT)
+  RETURN_SKIP(NO_SELF_CONNECT);
+#endif
   uv_loop_t* loop;
   int r;
 
diff --git a/test/test-poll.c b/test/test-poll.c
index 0cf6740f..7cfc159a 100644
--- a/test/test-poll.c
+++ b/test/test-poll.c
@@ -574,6 +574,9 @@ static void start_poll_test(void) {
 
 
 TEST_IMPL(poll_duplex) {
+#if defined(NO_SELF_CONNECT)
+  RETURN_SKIP(NO_SELF_CONNECT);
+#endif
   test_mode = DUPLEX;
   start_poll_test();
   return 0;
@@ -581,6 +584,9 @@ TEST_IMPL(poll_duplex) {
 
 
 TEST_IMPL(poll_unidirectional) {
+#if defined(NO_SELF_CONNECT)
+  RETURN_SKIP(NO_SELF_CONNECT);
+#endif
   test_mode = UNIDIRECTIONAL;
   start_poll_test();
   return 0;