diff --git a/custom_components/ha_text_ai/__init__.py b/custom_components/ha_text_ai/__init__.py
index d47e566..ba12f21 100644
--- a/custom_components/ha_text_ai/__init__.py
+++ b/custom_components/ha_text_ai/__init__.py
@@ -189,15 +189,14 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
         else:  # OpenAI
             headers["Authorization"] = f"Bearer {api_key}"
 
-        # Проверка API с повторами
-        for attempt in range(API_RETRY_COUNT):
-            if await async_check_api(session, endpoint, headers, api_provider):
-                break
-            if attempt < API_RETRY_COUNT - 1:
-                delay = 1.5 * (2 ** attempt)
-                await asyncio.sleep(delay)
-            else:
-                raise ConfigEntryNotReady("Failed to connect to API")
+        # Проверка API
+        try:
+            check_result = await async_check_api(session, endpoint, headers, api_provider)
+            if not check_result:
+                raise ConfigEntryNotReady("API connection failed")
+        except Exception as ex:
+            _LOGGER.error(f"API check failed: {ex}")
+            raise ConfigEntryNotReady("Failed to connect to API")
 
         try:
             # Create coordinator
@@ -235,7 +234,6 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
         _LOGGER.exception("Setup error: %s", str(ex))
         raise ConfigEntryNotReady(f"Setup error: {str(ex)}") from ex
 
-
 async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Unload a config entry."""
     try:
diff --git a/custom_components/ha_text_ai/config_flow.py b/custom_components/ha_text_ai/config_flow.py
index e6014d9..306d116 100644
--- a/custom_components/ha_text_ai/config_flow.py
+++ b/custom_components/ha_text_ai/config_flow.py
@@ -121,14 +121,26 @@ class HATextAIConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
                 errors["base"] = "cannot_connect"
 
             if not errors:
-                # Use a unique ID based on the API key
-                await self.async_set_unique_id(user_input[CONF_API_KEY])
-                self._abort_if_unique_id_configured()
+                # ВАЖНОЕ ИЗМЕНЕНИЕ: создаем уникальный идентификатор
+                unique_id = f"{user_input[CONF_API_PROVIDER]}_{user_input[CONF_API_ENDPOINT]}_{user_input[CONF_API_KEY]}"
 
-                return self.async_create_entry(
-                    title=f"HA Text AI ({user_input[CONF_API_PROVIDER]})",
-                    data=user_input
-                )
+                # Проверяем существующие конфигурации
+                existing_entries = [
+                    entry for entry in self.hass.config_entries.async_entries(DOMAIN)
+                    if entry.data.get(CONF_API_PROVIDER) == user_input[CONF_API_PROVIDER]
+                    and entry.data.get(CONF_API_ENDPOINT) == user_input[CONF_API_ENDPOINT]
+                ]
+
+                if existing_entries:
+                    errors["base"] = "already_configured"
+                else:
+                    await self.async_set_unique_id(unique_id)
+                    self._abort_if_unique_id_configured()
+
+                    return self.async_create_entry(
+                        title=f"HA Text AI ({user_input[CONF_API_PROVIDER]})",
+                        data=user_input
+                    )
 
         except Exception as e:
             _LOGGER.error(f"Unexpected error: {e}")