diff --git a/meshtastic/stream_interface.py b/meshtastic/stream_interface.py
index ec0670d6..6c53509f 100644
--- a/meshtastic/stream_interface.py
+++ b/meshtastic/stream_interface.py
@@ -8,7 +8,7 @@
 
 
 from meshtastic.mesh_interface import MeshInterface
-from meshtastic.util import stripnl
+from meshtastic.util import stripnl, is_windows11
 
 
 START1 = 0x94
@@ -38,6 +38,8 @@ def __init__(self, debugOut=None, noProto=False, connectNow=True):
         self._rxBuf = bytes()  # empty
         self._wantExit = False
 
+        self.is_windows11 = is_windows11()
+
         # FIXME, figure out why daemon=True causes reader thread to exit too early
         self._rxThread = threading.Thread(target=self.__reader, args=(), daemon=True)
 
@@ -88,9 +90,12 @@ def _writeBytes(self, b):
         if self.stream:  # ignore writes when stream is closed
             self.stream.write(b)
             self.stream.flush()
-            # we sleep here to give the TBeam a chance to work
-            # also win11 might need a bit more time, too
-            time.sleep(1.0)
+            # win11 might need a bit more time, too
+            if self.is_windows11:
+                time.sleep(1.0)
+            else:
+                # we sleep here to give the TBeam a chance to work
+                time.sleep(0.1)
 
     def _readBytes(self, length):
         """Read an array of bytes from our stream"""
diff --git a/meshtastic/tests/test_util.py b/meshtastic/tests/test_util.py
index fe326d91..399959c2 100644
--- a/meshtastic/tests/test_util.py
+++ b/meshtastic/tests/test_util.py
@@ -11,7 +11,8 @@
                              quoteBooleans, catchAndIgnore,
                              remove_keys_from_dict, Timeout, hexstr,
                              ipstr, readnet_u16, findPorts, convert_mac_addr,
-                             snake_to_camel, camel_to_snake, eliminate_duplicate_port)
+                             snake_to_camel, camel_to_snake, eliminate_duplicate_port,
+                             is_windows11)
 
 
 @pytest.mark.unit
@@ -284,3 +285,44 @@ def test_eliminate_duplicate_port():
     assert eliminate_duplicate_port(['/dev/cu.usbserial-1430', '/dev/cu.wchusbserial1430']) == ['/dev/cu.wchusbserial1430']
     assert eliminate_duplicate_port(['/dev/cu.SLAB_USBtoUART', '/dev/cu.usbserial-0001']) == ['/dev/cu.usbserial-0001']
     assert eliminate_duplicate_port(['/dev/cu.usbmodem11301', '/dev/cu.wchusbserial11301']) == ['/dev/cu.wchusbserial11301']
+
+@patch('platform.version', return_value='10.0.22000.194')
+@patch('platform.release', return_value='10')
+@patch('platform.system', return_value='Windows')
+def test_is_windows11_true(patched_platform, patched_release, patched_version):
+    """Test is_windows11()"""
+    assert is_windows11() is True
+    patched_platform.assert_called()
+    patched_release.assert_called()
+    patched_version.assert_called()
+
+
+@patch('platform.version', return_value='10.0.a2200.foo') # made up
+@patch('platform.release', return_value='10')
+@patch('platform.system', return_value='Windows')
+def test_is_windows11_true2(patched_platform, patched_release, patched_version):
+    """Test is_windows11()"""
+    assert is_windows11() is False
+    patched_platform.assert_called()
+    patched_release.assert_called()
+    patched_version.assert_called()
+
+
+@patch('platform.version', return_value='10.0.17763') # windows 10 home
+@patch('platform.release', return_value='10')
+@patch('platform.system', return_value='Windows')
+def test_is_windows11_false(patched_platform, patched_release, patched_version):
+    """Test is_windows11()"""
+    assert is_windows11() is False
+    patched_platform.assert_called()
+    patched_release.assert_called()
+    patched_version.assert_called()
+
+
+@patch('platform.release', return_value='8.1')
+@patch('platform.system', return_value='Windows')
+def test_is_windows11_false_win8_1(patched_platform, patched_release):
+    """Test is_windows11()"""
+    assert is_windows11() is False
+    patched_platform.assert_called()
+    patched_release.assert_called()
diff --git a/meshtastic/util.py b/meshtastic/util.py
index 21258f1c..e3d8a28f 100644
--- a/meshtastic/util.py
+++ b/meshtastic/util.py
@@ -413,3 +413,21 @@ def eliminate_duplicate_port(ports):
         else:
             new_ports = ports
     return new_ports
+
+
+def is_windows11():
+    """Detect if Windows 11"""
+    is_win11 = False
+    if platform.system() == "Windows":
+        if float(platform.release()) >= 10.0:
+            patch = platform.version().split('.')[2]
+            print(f'patch:{patch}')
+            # in case they add some number suffix later, just get first 5 chars of patch
+            patch = patch[:5]
+            try:
+                if int(patch) >= 22000:
+                    is_win11 = True
+            except Exception as e:
+                print(f'problem detecting win11 e:{e}')
+    print(f'is_win11:{is_win11}')
+    return is_win11