diff --git a/reflex/reflex.py b/reflex/reflex.py
index 930261798..53d3ae3b6 100644
--- a/reflex/reflex.py
+++ b/reflex/reflex.py
@@ -161,7 +161,7 @@ def _run(
 
     # Find the next available open port if applicable.
     if frontend:
-        autoswitch_frontend = not bool(frontend_port or config.frontend_port)
+        auto_increment_frontend = not bool(frontend_port or config.frontend_port)
         frontend_port = processes.handle_port(
             "frontend",
             (
@@ -169,11 +169,11 @@ def _run(
                 or config.frontend_port
                 or constants.DefaultPorts.FRONTEND_PORT
             ),
-            autoswitch=autoswitch_frontend,
+            auto_increment=auto_increment_frontend,
         )
 
     if backend:
-        autoswitch_backend = not bool(backend_port or config.backend_port)
+        auto_increment_backend = not bool(backend_port or config.backend_port)
 
         backend_port = processes.handle_port(
             "backend",
@@ -182,7 +182,7 @@ def _run(
                 or config.backend_port
                 or constants.DefaultPorts.BACKEND_PORT
             ),
-            autoswitch=autoswitch_backend,
+            auto_increment=auto_increment_backend,
         )
 
     # Apply the new ports to the config.
diff --git a/reflex/utils/processes.py b/reflex/utils/processes.py
index c7a90320b..0eb2cf162 100644
--- a/reflex/utils/processes.py
+++ b/reflex/utils/processes.py
@@ -116,7 +116,7 @@ def change_port(port: int, _type: str) -> int:
     return new_port
 
 
-def handle_port(service_name: str, port: int, autoswitch: bool) -> int:
+def handle_port(service_name: str, port: int, auto_increment: bool) -> int:
     """Change port if the specified port is in use and is not explicitly specified as a CLI arg or config arg.
     otherwise tell the user the port is in use and exit the app.
 
@@ -126,7 +126,7 @@ def handle_port(service_name: str, port: int, autoswitch: bool) -> int:
     Args:
         service_name: The frontend or backend.
         port: The provided port.
-        autoswitch: Whether to automatically switch the port.
+        auto_increment: Whether to automatically switch the port.
 
     Returns:
         The port to run the service on.
@@ -134,12 +134,14 @@ def handle_port(service_name: str, port: int, autoswitch: bool) -> int:
     Raises:
         Exit:when the port is in use.
     """
-    if not is_process_on_port(port):
+    if (process := get_process_on_port(port)) is None:
         return port
-    if autoswitch:
+    if auto_increment:
         return change_port(port, service_name)
     else:
-        console.error(f"{service_name.capitalize()} port: {port} is already in use")
+        console.error(
+            f"{service_name.capitalize()} port: {port} is already in use by PID: {process.pid}."
+        )
         raise typer.Exit()