diff --git a/homeassistant/components/huawei_lte/.translations/en.json b/homeassistant/components/huawei_lte/.translations/en.json
index 8681e3355a4..4e366e0ce31 100644
--- a/homeassistant/components/huawei_lte/.translations/en.json
+++ b/homeassistant/components/huawei_lte/.translations/en.json
@@ -5,6 +5,7 @@
         },
         "error": {
             "connection_failed": "Connection failed",
+            "connection_timeout": "Connection timeout",
             "incorrect_password": "Incorrect password",
             "incorrect_username": "Incorrect username",
             "incorrect_username_or_password": "Incorrect username or password",
diff --git a/homeassistant/components/huawei_lte/__init__.py b/homeassistant/components/huawei_lte/__init__.py
index e224f45ba90..112fcb6ec52 100644
--- a/homeassistant/components/huawei_lte/__init__.py
+++ b/homeassistant/components/huawei_lte/__init__.py
@@ -18,6 +18,7 @@ from huawei_lte_api.exceptions import (
     ResponseErrorLoginRequiredException,
     ResponseErrorNotSupportedException,
 )
+from requests.exceptions import Timeout
 from url_normalize import url_normalize
 
 from homeassistant.components.device_tracker import DOMAIN as DEVICE_TRACKER_DOMAIN
@@ -33,6 +34,7 @@ from homeassistant.const import (
     EVENT_HOMEASSISTANT_STOP,
 )
 from homeassistant.core import CALLBACK_TYPE
+from homeassistant.exceptions import ConfigEntryNotReady
 from homeassistant.helpers import config_validation as cv, discovery
 from homeassistant.helpers.dispatcher import (
     async_dispatcher_connect,
@@ -44,6 +46,7 @@ from homeassistant.helpers.event import async_track_time_interval
 from homeassistant.helpers.typing import HomeAssistantType
 from .const import (
     ALL_KEYS,
+    CONNECTION_TIMEOUT,
     DEFAULT_DEVICE_NAME,
     DOMAIN,
     KEY_DEVICE_BASIC_INFORMATION,
@@ -254,16 +257,21 @@ async def async_setup_entry(hass: HomeAssistantType, config_entry: ConfigEntry)
         username = config_entry.data.get(CONF_USERNAME)
         password = config_entry.data.get(CONF_PASSWORD)
         if username or password:
-            connection = AuthorizedConnection(url, username=username, password=password)
+            connection = AuthorizedConnection(
+                url, username=username, password=password, timeout=CONNECTION_TIMEOUT
+            )
         else:
-            connection = Connection(url)
+            connection = Connection(url, timeout=CONNECTION_TIMEOUT)
         return connection
 
     def signal_update() -> None:
         """Signal updates to data."""
         dispatcher_send(hass, UPDATE_SIGNAL, url)
 
-    connection = await hass.async_add_executor_job(get_connection)
+    try:
+        connection = await hass.async_add_executor_job(get_connection)
+    except Timeout as ex:
+        raise ConfigEntryNotReady from ex
 
     # Set up router and store reference to it
     router = Router(connection, url, mac, signal_update)
diff --git a/homeassistant/components/huawei_lte/config_flow.py b/homeassistant/components/huawei_lte/config_flow.py
index 52d586d088a..992dc33a697 100644
--- a/homeassistant/components/huawei_lte/config_flow.py
+++ b/homeassistant/components/huawei_lte/config_flow.py
@@ -14,13 +14,14 @@ from huawei_lte_api.exceptions import (
     LoginErrorUsernamePasswordOverrunException,
     ResponseErrorException,
 )
+from requests.exceptions import Timeout
 from url_normalize import url_normalize
 import voluptuous as vol
 
 from homeassistant import config_entries
 from homeassistant.const import CONF_PASSWORD, CONF_RECIPIENT, CONF_URL, CONF_USERNAME
 from homeassistant.core import callback
-from .const import DEFAULT_DEVICE_NAME
+from .const import CONNECTION_TIMEOUT, DEFAULT_DEVICE_NAME
 
 # https://github.com/PyCQA/pylint/issues/3202
 from .const import DOMAIN  # pylint: disable=unused-import
@@ -115,12 +116,18 @@ class ConfigFlowHandler(config_entries.ConfigFlow, domain=DOMAIN):
             """Try connecting with given credentials."""
             if username or password:
                 conn = AuthorizedConnection(
-                    user_input[CONF_URL], username=username, password=password
+                    user_input[CONF_URL],
+                    username=username,
+                    password=password,
+                    timeout=CONNECTION_TIMEOUT,
                 )
             else:
                 try:
                     conn = AuthorizedConnection(
-                        user_input[CONF_URL], username="", password=""
+                        user_input[CONF_URL],
+                        username="",
+                        password="",
+                        timeout=CONNECTION_TIMEOUT,
                     )
                     user_input[CONF_USERNAME] = ""
                     user_input[CONF_PASSWORD] = ""
@@ -129,7 +136,7 @@ class ConfigFlowHandler(config_entries.ConfigFlow, domain=DOMAIN):
                         "Could not login with empty credentials, proceeding unauthenticated",
                         exc_info=True,
                     )
-                    conn = Connection(user_input[CONF_URL])
+                    conn = Connection(user_input[CONF_URL], timeout=CONNECTION_TIMEOUT)
                     del user_input[CONF_USERNAME]
                     del user_input[CONF_PASSWORD]
             return conn
@@ -170,6 +177,9 @@ class ConfigFlowHandler(config_entries.ConfigFlow, domain=DOMAIN):
         except ResponseErrorException:
             _LOGGER.warning("Response error", exc_info=True)
             errors["base"] = "response_error"
+        except Timeout:
+            _LOGGER.warning("Connection timeout", exc_info=True)
+            errors[CONF_URL] = "connection_timeout"
         except Exception:  # pylint: disable=broad-except
             _LOGGER.warning("Unknown error connecting to device", exc_info=True)
             errors[CONF_URL] = "unknown_connection_error"
diff --git a/homeassistant/components/huawei_lte/const.py b/homeassistant/components/huawei_lte/const.py
index 3d99261e6ed..8dae63f6538 100644
--- a/homeassistant/components/huawei_lte/const.py
+++ b/homeassistant/components/huawei_lte/const.py
@@ -10,6 +10,8 @@ UPDATE_OPTIONS_SIGNAL = f"{DOMAIN}_options_update"
 UNIT_BYTES = "B"
 UNIT_SECONDS = "s"
 
+CONNECTION_TIMEOUT = 10
+
 KEY_DEVICE_BASIC_INFORMATION = "device_basic_information"
 KEY_DEVICE_INFORMATION = "device_information"
 KEY_DEVICE_SIGNAL = "device_signal"
diff --git a/homeassistant/components/huawei_lte/strings.json b/homeassistant/components/huawei_lte/strings.json
index 8681e3355a4..2e76cf1b343 100644
--- a/homeassistant/components/huawei_lte/strings.json
+++ b/homeassistant/components/huawei_lte/strings.json
@@ -11,6 +11,7 @@
             "invalid_url": "Invalid URL",
             "login_attempts_exceeded": "Maximum login attempts exceeded, please try again later",
             "response_error": "Unknown error from device",
+            "connection_timeout": "Connection timeout",
             "unknown_connection_error": "Unknown error connecting to device"
         },
         "step": {