Fix device re-connect when API connection lost (#25842)

homeassistant/components/mikrotik/__init__.py

@@ -172,6 +172,7 @@ class MikrotikClient:
     def command(self, cmd, params=None):
         """Retrieve data from Mikrotik API."""
         if not self._connected or not self._client:
+            if not self.connect_to_device():
                 return None
         try:
             if params: