diff --git a/homeassistant/components/bsblan/__init__.py b/homeassistant/components/bsblan/__init__.py
index 623bfbfef56..a7beb4f8d44 100644
--- a/homeassistant/components/bsblan/__init__.py
+++ b/homeassistant/components/bsblan/__init__.py
@@ -2,7 +2,16 @@
 
 import dataclasses
 
-from bsblan import BSBLAN, BSBLANConfig, Device, Info, StaticState
+from bsblan import (
+    BSBLAN,
+    BSBLANAuthError,
+    BSBLANConfig,
+    BSBLANConnectionError,
+    BSBLANError,
+    Device,
+    Info,
+    StaticState,
+)
 
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import (
@@ -13,9 +22,14 @@ from homeassistant.const import (
     Platform,
 )
 from homeassistant.core import HomeAssistant
+from homeassistant.exceptions import (
+    ConfigEntryAuthFailed,
+    ConfigEntryError,
+    ConfigEntryNotReady,
+)
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 
-from .const import CONF_PASSKEY
+from .const import CONF_PASSKEY, DOMAIN
 from .coordinator import BSBLanUpdateCoordinator
 
 PLATFORMS = [Platform.CLIMATE, Platform.SENSOR, Platform.WATER_HEATER]
@@ -54,10 +68,27 @@ async def async_setup_entry(hass: HomeAssistant, entry: BSBLanConfigEntry) -> bo
     coordinator = BSBLanUpdateCoordinator(hass, entry, bsblan)
     await coordinator.async_config_entry_first_refresh()
 
-    # Fetch all required data concurrently
-    device = await bsblan.device()
-    info = await bsblan.info()
-    static = await bsblan.static_values()
+    try:
+        # Fetch all required data sequentially
+        device = await bsblan.device()
+        info = await bsblan.info()
+        static = await bsblan.static_values()
+    except BSBLANConnectionError as err:
+        raise ConfigEntryNotReady(
+            translation_domain=DOMAIN,
+            translation_key="setup_connection_error",
+            translation_placeholders={"host": entry.data[CONF_HOST]},
+        ) from err
+    except BSBLANAuthError as err:
+        raise ConfigEntryAuthFailed(
+            translation_domain=DOMAIN,
+            translation_key="setup_auth_error",
+        ) from err
+    except BSBLANError as err:
+        raise ConfigEntryError(
+            translation_domain=DOMAIN,
+            translation_key="setup_general_error",
+        ) from err
 
     entry.runtime_data = BSBLanData(
         client=bsblan,
diff --git a/homeassistant/components/bsblan/strings.json b/homeassistant/components/bsblan/strings.json
index 86e52e76f41..b27be62e052 100644
--- a/homeassistant/components/bsblan/strings.json
+++ b/homeassistant/components/bsblan/strings.json
@@ -41,6 +41,11 @@
           "passkey": "[%key:component::bsblan::config::step::user::data::passkey%]",
           "username": "[%key:common::config_flow::data::username%]",
           "password": "[%key:common::config_flow::data::password%]"
+        },
+        "data_description": {
+          "passkey": "[%key:component::bsblan::config::step::user::data_description::passkey%]",
+          "username": "[%key:component::bsblan::config::step::user::data_description::username%]",
+          "password": "[%key:component::bsblan::config::step::user::data_description::password%]"
         }
       }
     },
@@ -66,6 +71,15 @@
     },
     "set_operation_mode_error": {
       "message": "An error occurred while setting the operation mode"
+    },
+    "setup_connection_error": {
+      "message": "Failed to retrieve static device data from BSB-Lan device at {host}"
+    },
+    "setup_auth_error": {
+      "message": "Authentication failed while retrieving static device data"
+    },
+    "setup_general_error": {
+      "message": "An unknown error occurred while retrieving static device data"
     }
   },
   "entity": {
diff --git a/tests/components/bsblan/test_init.py b/tests/components/bsblan/test_init.py
index cc52799d28b..10945a24878 100644
--- a/tests/components/bsblan/test_init.py
+++ b/tests/components/bsblan/test_init.py
@@ -2,8 +2,9 @@
 
 from unittest.mock import MagicMock
 
-from bsblan import BSBLANAuthError, BSBLANConnectionError
+from bsblan import BSBLANAuthError, BSBLANConnectionError, BSBLANError
 from freezegun.api import FrozenDateTimeFactory
+import pytest
 
 from homeassistant.components.bsblan.const import DOMAIN
 from homeassistant.config_entries import ConfigEntryState
@@ -75,3 +76,38 @@ async def test_config_entry_auth_failed_triggers_reauth(
     assert len(flows) == 1
     assert flows[0]["context"]["source"] == "reauth"
     assert flows[0]["context"]["entry_id"] == mock_config_entry.entry_id
+
+
+@pytest.mark.parametrize(
+    ("method", "exception", "expected_state"),
+    [
+        (
+            "device",
+            BSBLANConnectionError("Connection failed"),
+            ConfigEntryState.SETUP_RETRY,
+        ),
+        (
+            "info",
+            BSBLANAuthError("Authentication failed"),
+            ConfigEntryState.SETUP_ERROR,
+        ),
+        ("static_values", BSBLANError("General error"), ConfigEntryState.SETUP_ERROR),
+    ],
+)
+async def test_config_entry_static_data_errors(
+    hass: HomeAssistant,
+    mock_config_entry: MockConfigEntry,
+    mock_bsblan: MagicMock,
+    method: str,
+    exception: Exception,
+    expected_state: ConfigEntryState,
+) -> None:
+    """Test various errors during static data fetching trigger appropriate config entry states."""
+    # Mock the specified method to raise the exception
+    getattr(mock_bsblan, method).side_effect = exception
+
+    mock_config_entry.add_to_hass(hass)
+    await hass.config_entries.async_setup(mock_config_entry.entry_id)
+    await hass.async_block_till_done()
+
+    assert mock_config_entry.state is expected_state