diff --git a/not1mm/__main__.py b/not1mm/__main__.py
index caf1d8f..34e021a 100644
--- a/not1mm/__main__.py
+++ b/not1mm/__main__.py
@@ -2024,8 +2024,19 @@ def keyPressEvent(self, event) -> None:  # pylint: disable=invalid-name
         Returns:
         -------
         None
+
+        Control
+        QWRTYIOPSFGHJLBNM,./;'[]//-
+
+
+        shift control
+        ABCDEFGHIJKLMNOPQRSTUVWXY
         """
         modifier = event.modifiers()
+        # the_key = event.key()
+
+        # print(f"Modifier is {modifier=} Key is {the_key=}")
+
         if (
             event.key() == Qt.Key.Key_Equal
             and modifier == Qt.KeyboardModifier.ControlModifier
diff --git a/not1mm/lib/cat_interface.py b/not1mm/lib/cat_interface.py
index 2888e06..a8f826a 100644
--- a/not1mm/lib/cat_interface.py
+++ b/not1mm/lib/cat_interface.py
@@ -81,7 +81,11 @@ def __init__(self, interface: str, host: str, port: int) -> None:
         }
 
         if self.interface == "flrig":
-            target = f"http://{host}:{port}"
+            if not self.__check_sane_ip(self.host):
+                self.online = False
+                return
+
+            target = f"http://{self.host}:{self.port}"
             logger.debug("%s", target)
             self.server = xmlrpc.client.ServerProxy(target)
             self.online = True
@@ -91,15 +95,30 @@ def __init__(self, interface: str, host: str, port: int) -> None:
                 ConnectionRefusedError,
                 xmlrpc.client.Fault,
                 http.client.BadStatusLine,
+                socket.error,
+                socket.gaierror,
             ):
                 self.online = False
         elif self.interface == "rigctld":
+            if not self.__check_sane_ip(self.host):
+                self.online = False
+                return
             self.__initialize_rigctrld()
         elif self.interface == "fake":
             self.online = True
             logger.debug("Using Fake Rig")
         return
 
+    def __check_sane_ip(self, ip: str) -> bool:
+        """check if IP address look normal"""
+        x = ip.split()
+        if len(x) != 4:
+            return False
+        for y in x:
+            if not y.isnumeric():
+                return False
+        return True
+
     def __initialize_rigctrld(self):
         try:
             self.rigctrlsocket = socket.socket()
@@ -107,7 +126,13 @@ def __initialize_rigctrld(self):
             self.rigctrlsocket.connect((self.host, self.port))
             logger.debug("Connected to rigctrld")
             self.online = True
-        except (ConnectionRefusedError, TimeoutError, OSError) as exception:
+        except (
+            ConnectionRefusedError,
+            TimeoutError,
+            OSError,
+            socket.error,
+            socket.gaierror,
+        ) as exception:
             self.rigctrlsocket = None
             self.online = False
             logger.debug("%s", f"{exception}")
@@ -233,6 +258,7 @@ def __getvfo_flrig(self) -> str:
             http.client.BadStatusLine,
             http.client.CannotSendRequest,
             http.client.ResponseNotReady,
+            AttributeError,
         ) as exception:
             self.online = False
             logger.debug(f"{exception=}")
@@ -280,6 +306,7 @@ def __getmode_flrig(self) -> str:
             http.client.BadStatusLine,
             http.client.CannotSendRequest,
             http.client.ResponseNotReady,
+            AttributeError,
         ) as exception:
             self.online = False
             logger.debug("%s", f"{exception}")
@@ -329,6 +356,7 @@ def __getbw_flrig(self):
             http.client.BadStatusLine,
             http.client.CannotSendRequest,
             http.client.ResponseNotReady,
+            AttributeError,
         ) as exception:
             self.online = False
             logger.debug("getbw_flrig: %s", f"{exception}")
@@ -453,6 +481,7 @@ def __get_mode_list_flrig(self):
             http.client.BadStatusLine,
             http.client.CannotSendRequest,
             http.client.ResponseNotReady,
+            AttributeError,
         ) as exception:
             self.online = False
             logger.debug("%s", f"{exception}")
@@ -502,6 +531,7 @@ def __setvfo_flrig(self, freq: str) -> bool:
             http.client.BadStatusLine,
             http.client.CannotSendRequest,
             http.client.ResponseNotReady,
+            AttributeError,
         ) as exception:
             self.online = False
             logger.debug("setvfo_flrig: %s", f"{exception}")
@@ -547,6 +577,7 @@ def __setmode_flrig(self, mode: str) -> bool:
             http.client.BadStatusLine,
             http.client.CannotSendRequest,
             http.client.ResponseNotReady,
+            AttributeError,
         ) as exception:
             self.online = False
             logger.debug(f"{exception=}")
@@ -590,6 +621,7 @@ def __setpower_flrig(self, power):
             http.client.BadStatusLine,
             http.client.CannotSendRequest,
             http.client.ResponseNotReady,
+            AttributeError,
         ) as exception:
             self.online = False
             logger.debug("setpower_flrig: %s", f"{exception}")
@@ -648,6 +680,7 @@ def __ptt_on_flrig(self):
             http.client.BadStatusLine,
             http.client.CannotSendRequest,
             http.client.ResponseNotReady,
+            AttributeError,
         ) as exception:
             self.online = False
             logger.debug("%s", f"{exception}")
@@ -686,6 +719,7 @@ def __ptt_off_flrig(self):
             http.client.BadStatusLine,
             http.client.CannotSendRequest,
             http.client.ResponseNotReady,
+            AttributeError,
         ) as exception:
             self.online = False
             logger.debug("%s", f"{exception}")