diff --git a/CHANGELOG.md b/CHANGELOG.md
index 03d78565..97e23b91 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 
 - [2026-01-28] Merge pull request #485 from mbridak/484-1mm-doesnt-launch-if-the-route-to-flrig-fails
   - Add TimeoutError handling in CAT class methods
+  - Add OSError handling in CAT class methods
 - [2026-01-24] Merge pull request #481 from mbridak/478-crashes-save-qso
   - Add error handling for data parsing in MainWindow class
 - [2026-01-23] Merge pull request #477 from mbridak/highlight-599
diff --git a/README.md b/README.md
index 83de98e4..a6eebc25 100644
--- a/README.md
+++ b/README.md
@@ -62,6 +62,7 @@ generated, 'cause I'm lazy, list of those who've submitted PR's.
 
 - [2026-01-28] Merge pull request #485 from mbridak/484-1mm-doesnt-launch-if-the-route-to-flrig-fails
   - Add TimeoutError handling in CAT class methods
+  - Add OSError handling in CAT class methods
 - [2026-01-24] Merge pull request #481 from mbridak/478-crashes-save-qso
   - Add error handling for data parsing in MainWindow class
 - [2026-01-23] Merge pull request #477 from mbridak/highlight-599
diff --git a/not1mm/lib/cat_interface.py b/not1mm/lib/cat_interface.py
index 4a8caf9c..3ea62978 100644
--- a/not1mm/lib/cat_interface.py
+++ b/not1mm/lib/cat_interface.py
@@ -100,6 +100,7 @@ def __init__(self, interface: str, host: str, port: int) -> None:
                 socket.error,
                 socket.gaierror,
                 TimeoutError,
+                OSError,
             ):
                 self.online = False
         elif self.interface == "rigctld":
@@ -273,6 +274,7 @@ def sendcwxmlrpc(self, texttosend):
             http.client.CannotSendRequest,
             http.client.ResponseNotReady,
             TimeoutError,
+            OSError,
         ) as exception:
             self.online = False
             logger.debug("%s", f"{exception}")
@@ -293,6 +295,7 @@ def set_flrig_cw_send(self, send: bool) -> None:
             http.client.ResponseNotReady,
             ValueError,
             TimeoutError,
+            OSError,
         ) as exception:
             self.online = False
             logger.debug("%s", f"{exception}")
@@ -312,6 +315,7 @@ def set_flrig_cw_speed(self, speed):
             http.client.ResponseNotReady,
             ValueError,
             TimeoutError,
+            OSError,
         ) as exception:
             self.online = False
             logger.debug("%s", f"{exception}")
@@ -344,6 +348,7 @@ def __getvfo_flrig(self) -> str:
             http.client.ResponseNotReady,
             AttributeError,
             TimeoutError,
+            OSError,
         ) as exception:
             self.online = False
             logger.debug(f"{exception=}")
@@ -402,6 +407,7 @@ def __getmode_flrig(self) -> str:
             http.client.ResponseNotReady,
             AttributeError,
             TimeoutError,
+            OSError,
         ) as exception:
             self.online = False
             logger.debug("%s", f"{exception}")
@@ -461,6 +467,7 @@ def __getbw_flrig(self):
             http.client.ResponseNotReady,
             AttributeError,
             TimeoutError,
+            OSError,
         ) as exception:
             self.online = False
             logger.debug("getbw_flrig: %s", f"{exception}")
@@ -490,6 +497,7 @@ def __getpower_flrig(self):
             http.client.CannotSendRequest,
             http.client.ResponseNotReady,
             TimeoutError,
+            OSError,
         ) as exception:
             self.online = False
             logger.debug("getpower_flrig: %s", f"{exception}")
@@ -537,6 +545,7 @@ def __getptt_flrig(self):
             http.client.CannotSendRequest,
             http.client.ResponseNotReady,
             TimeoutError,
+            OSError,
         ) as exception:
             self.online = False
             logger.debug("%s", f"{exception}")
@@ -588,6 +597,7 @@ def __get_mode_list_flrig(self):
             http.client.ResponseNotReady,
             AttributeError,
             TimeoutError,
+            OSError,
         ) as exception:
             self.online = False
             logger.debug("%s", f"{exception}")
@@ -644,6 +654,7 @@ def __setvfo_flrig(self, freq: str) -> bool:
             http.client.ResponseNotReady,
             AttributeError,
             TimeoutError,
+            OSError,
         ) as exception:
             self.online = False
             logger.debug("setvfo_flrig: %s", f"{exception}")
@@ -697,6 +708,7 @@ def __setmode_flrig(self, mode: str) -> bool:
             http.client.ResponseNotReady,
             AttributeError,
             TimeoutError,
+            OSError,
         ) as exception:
             self.online = False
             logger.debug(f"{exception=}")
@@ -747,6 +759,7 @@ def __setpower_flrig(self, power):
             http.client.ResponseNotReady,
             AttributeError,
             TimeoutError,
+            OSError,
         ) as exception:
             self.online = False
             logger.debug("setpower_flrig: %s", f"{exception}")
@@ -819,6 +832,7 @@ def __ptt_on_flrig(self):
             http.client.ResponseNotReady,
             AttributeError,
             TimeoutError,
+            OSError,
         ) as exception:
             self.online = False
             logger.debug("%s", f"{exception}")
@@ -865,6 +879,7 @@ def __ptt_off_flrig(self):
             http.client.ResponseNotReady,
             AttributeError,
             TimeoutError,
+            OSError,
         ) as exception:
             self.online = False
             logger.debug("%s", f"{exception}")
@@ -933,6 +948,7 @@ def __send_cat_string_flrig(self, cmd, thisishex):
             http.client.ResponseNotReady,
             AttributeError,
             TimeoutError,
+            OSError,
         ) as exception:
             self.online = False
             logger.debug("%s", f"{exception}")
diff --git a/not1mm/lib/version.py b/not1mm/lib/version.py
index 1666349e..529eeb95 100644
--- a/not1mm/lib/version.py
+++ b/not1mm/lib/version.py
@@ -1,3 +1,3 @@
 """It's the version"""
 
-__version__ = "26.1.28"
+__version__ = "26.1.28.1"
diff --git a/pyproject.toml b/pyproject.toml
index 4c12a590..f1f1d519 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "not1mm" 
-version = "26.1.28"
+version = "26.1.28.1"
 description = "NOT1MM Logger"
 license = "GPL-3.0-or-later"
 readme = "README.md"