diff --git a/linien_server/cli.py b/linien_server/cli.py
index 98539b2..7781c74 100644
--- a/linien_server/cli.py
+++ b/linien_server/cli.py
@@ -83,18 +83,9 @@ class LinienServerCLI:
         else:
             control = RedPitayaControlService(host=host)
 
-        if fake or host:
-            authenticator = no_authenticator
-        else:
-            authenticator = username_and_password_authenticator
-
-        try:
-            if not (fake or host):  # only available on RP
-                mdio_tool.disable_ethernet_blinking()
-            run_threaded_server(control, authenticator=authenticator)
-        finally:
-            if not (fake or host):  # only available on RP
-                mdio_tool.enable_ethernet_blinking()
+        authenticator = no_authenticator
+
+        run_threaded_server(control, authenticator=authenticator)
 
     def enable(self) -> None:
         """Enable the Linien server to start on boot."""