diff --git a/common/JackClient.cpp b/common/JackClient.cpp
index 74a9dca87..1518aa1d5 100644
--- a/common/JackClient.cpp
+++ b/common/JackClient.cpp
@@ -639,13 +639,6 @@ inline bool JackClient::WaitSync()
 {
     // Suspend itself: wait on the input synchro
     if (GetGraphManager()->SuspendRefNum(GetClientControl(), fSynchroTable, LONG_MAX) < 0) {
-#ifdef __APPLE__
-        // FIXME macOS reports wait failures when closing down, due to aborted semaphore, ignore it
-        if (!GetClientControl()->fActive) {
-            fThread.Terminate();
-            return true;
-        }
-#endif
         jack_error("SuspendRefNum error");
         return false;
     } else {
diff --git a/macosx/JackMachThread.mm b/macosx/JackMachThread.mm
index b42de3e7d..68ece1248 100644
--- a/macosx/JackMachThread.mm
+++ b/macosx/JackMachThread.mm
@@ -46,7 +46,7 @@
 #endif
         theTCPolicy.preemptible = true;
         kern_return_t res = thread_policy_set(pthread_mach_thread_np(thread), THREAD_TIME_CONSTRAINT_POLICY, (thread_policy_t) &theTCPolicy, THREAD_TIME_CONSTRAINT_POLICY_COUNT);
-        jack_log("JackMachThread::thread_policy_set res = %ld", res);
+        jack_log("JackMachThread::thread_policy_set RT res = %ld", res);
         return (res == KERN_SUCCESS) ? 0 : -1;
     } else {
         // OTHER THREADS
@@ -69,7 +69,7 @@
 
         thePrecedencePolicy.importance = relativePriority;
         kern_return_t res = thread_policy_set(pthread_mach_thread_np(thread), THREAD_PRECEDENCE_POLICY, (thread_policy_t) &thePrecedencePolicy, THREAD_PRECEDENCE_POLICY_COUNT);
-        jack_log("JackMachThread::thread_policy_set res = %ld", res);
+        jack_log("JackMachThread::thread_policy_set non-RT res = %ld", res);
         return (res == KERN_SUCCESS) ? 0 : -1;
     }
 }
@@ -160,21 +160,16 @@
 
 int JackMachThread::Kill()
 {
-#if 0
-    // NOTE: starting macOS 12, this code no longer works
     if (fThread != (jack_native_thread_t)NULL)  { // If thread has been started
         jack_log("JackMachThread::Kill");
         mach_port_t machThread = pthread_mach_thread_np(fThread);
-        int res = (thread_terminate(machThread) == KERN_SUCCESS) ? 0 : -1;
+        int res = (thread_abort(machThread) == KERN_SUCCESS) ? 0 : -1;
         fStatus = kIdle;
         fThread = (jack_native_thread_t)NULL;
         return res;
     } else {
         return -1;
     }
-#else
-    return JackPosixThread::Kill();
-#endif
 }
 
 int JackMachThread::AcquireRealTime()
diff --git a/posix/JackSocket.cpp b/posix/JackSocket.cpp
index 4039679de..40887a0ca 100644
--- a/posix/JackSocket.cpp
+++ b/posix/JackSocket.cpp
@@ -202,7 +202,7 @@ int JackClientSocket::Read(void* data, int len)
             jack_error("Cannot read socket fd = %d res = %d err = %s", fSocket, res, strerror(errno));
             //return 0;
             return -1;
-        } else if (errno == 0) {
+        } else if (errno == 0 || errno == ENOTCONN) {
             // aborted reading due to shutdown
             return JACK_REQUEST_ERR_ABORTED;
         } else {