Add better error handling

custom_components/sagemcom_fast/__init__.py

@@ -75,7 +75,7 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry):
     except (AuthenticationException, UnauthorizedException) as exception:
         LOGGER.error("Invalid_auth")
         raise ConfigEntryAuthFailed("Invalid credentials") from exception
-    except (TimeoutError, ClientError) as exception:
+    except (TimeoutError, ClientError, ConnectionError) as exception:
         LOGGER.error("Failed to connect")
         raise ConfigEntryNotReady("Failed to connect") from exception
     except MaximumSessionCountException as exception:

custom_components/sagemcom_fast/config_flow.py

@@ -86,7 +86,7 @@ async def async_step_user(self, user_input=None):
                 errors["base"] = "access_restricted"
             except AuthenticationException:
                 errors["base"] = "invalid_auth"
-            except (TimeoutError, ClientError):
+            except (TimeoutError, ClientError, ConnectionError):
                 errors["base"] = "cannot_connect"
             except LoginTimeoutException:
                 errors["base"] = "login_timeout"

custom_components/sagemcom_fast/coordinator.py

@@ -69,7 +69,7 @@ async def _async_update_data(self) -> dict[str, Device]:
             raise ConfigEntryAuthFailed("Access restricted") from exception
         except (AuthenticationException, UnauthorizedException) as exception:
             raise ConfigEntryAuthFailed("Invalid credentials") from exception
-        except (TimeoutError, ClientError) as exception:
+        except (TimeoutError, ClientError, ConnectionError) as exception:
             raise UpdateFailed("Failed to connect") from exception
         except LoginRetryErrorException as exception:
             raise UpdateFailed(

custom_components/sagemcom_fast/translations/en.json

@@ -21,7 +21,7 @@
           "ssl": "Uses an SSL certificate",
           "verify_ssl": "Verify SSL certificate"
         },
-        "description": "Enter your credentials for accessing the routers web interface. Depending on the router model, Sagemcom is using different encryption methods for authentication, which can be found in the [supported devices](https://github.com/iMicknl/ha-sagemcom-fast#supported-devices) list."
+        "description": "Enter your credentials for accessing the router's web interface. The first login may take longer (up to a minute) as we retrieve the encryption method used by your router. For more information, see the [supported devices](https://github.com/iMicknl/ha-sagemcom-fast#supported-devices)."
       }
     }
   },