diff --git a/build/requirements.txt b/build/requirements.txt
index eba9d34..664cc26 100644
--- a/build/requirements.txt
+++ b/build/requirements.txt
@@ -14,3 +14,4 @@ pyserial==3.5
 requests==2.26.0
 Jinja2==3.0.1
 pydub==0.25.1
+psutil
diff --git a/server.py b/server.py
index 89f8d05..62d6cbb 100644
--- a/server.py
+++ b/server.py
@@ -20,6 +20,8 @@ import time
 from typing import Any, Optional
 import json
 from setproctitle import setproctitle
+import psutil
+
 from helpers.os_environment import isBundelled, isMacOS
 
 if not isMacOS():
@@ -111,7 +113,9 @@ class BAPSicleServer:
         while not terminator.terminate and self.state.get()["running_state"] == "running":
 
             for channel in range(self.state.get()["num_channels"]):
-                if not self.player[channel] or not self.player[channel].is_alive():
+                # Use pid_exists to confirm process is actually still running. Python may not report is_alive() correctly (especially over system sleeps etc.)
+                # https://medium.com/pipedrive-engineering/encountering-some-python-trickery-683bd5f66750
+                if not self.player[channel] or not self.player[channel].is_alive() or not psutil.pid_exists(self.player[channel].pid):
                     log_function("Player {} not running, (re)starting.".format(channel))
                     self.player[channel] = multiprocessing.Process(
                         target=player.Player,
@@ -119,7 +123,7 @@ class BAPSicleServer:
                     )
                     self.player[channel].start()
 
-            if not self.player_handler or not self.player_handler.is_alive():
+            if not self.player_handler or not self.player_handler.is_alive() or not psutil.pid_exists(self.player_handler.pid):
                 log_function("Player Handler not running, (re)starting.")
                 self.player_handler = multiprocessing.Process(
                     target=PlayerHandler,
@@ -127,7 +131,7 @@ class BAPSicleServer:
                 )
                 self.player_handler.start()
 
-            if not self.file_manager or not self.file_manager.is_alive():
+            if not self.file_manager or not self.file_manager.is_alive() or not psutil.pid_exists(self.file_manager.pid):
                 log_function("File Manager not running, (re)starting.")
                 self.file_manager = multiprocessing.Process(
                     target=FileManager,
@@ -135,21 +139,21 @@ class BAPSicleServer:
                 )
                 self.file_manager.start()
 
-            if not self.websockets_server or not self.websockets_server.is_alive():
+            if not self.websockets_server or not self.websockets_server.is_alive() or not psutil.pid_exists(self.websockets_server.pid):
                 log_function("Websocket Server not running, (re)starting.")
                 self.websockets_server = multiprocessing.Process(
                     target=WebsocketServer, args=(self.player_to_q, self.websocket_to_q, self.state)
                 )
                 self.websockets_server.start()
 
-            if not self.webserver or not self.webserver.is_alive():
+            if not self.webserver or not self.webserver.is_alive() or not psutil.pid_exists(self.webserver.pid):
                 log_function("Webserver not running, (re)starting.")
                 self.webserver = multiprocessing.Process(
                     target=WebServer, args=(self.player_to_q, self.ui_to_q, self.state)
                 )
                 self.webserver.start()
 
-            if not self.controller_handler or not self.controller_handler.is_alive():
+            if not self.controller_handler or not self.controller_handler.is_alive() or not psutil.pid_exists(self.controller_handler.pid):
                 log_function("Controller Handler not running, (re)starting.")
                 self.controller_handler = multiprocessing.Process(
                     target=MattchBox, args=(self.player_to_q, self.controller_to_q, self.state)