update

wifi_manager.py

@@ -128,7 +128,8 @@ def check_wifi_connection():
             sudo systemctl restart NetworkManager
             '''
             network_error_light()
-            subprocess.Popen('sudo reboot', shell=True)
+            subprocess.Popen('sudo systemctl restart NetworkManager', shell=True)
+            time.sleep(1)
     return False, None
 
 def scan_wifi():