Fix asuswrt network failure startup

homeassistant/components/asuswrt/__init__.py

@@ -14,6 +14,7 @@
 )
 from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers.discovery import async_load_platform
+from homeassistant.helpers.event import async_call_later
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -31,6 +32,9 @@
 DEFAULT_INTERFACE = "eth0"
 DEFAULT_DNSMASQ = "/var/lib/misc"
 
+FIRST_RETRY_TIME = 60
+MAX_RETRY_TIME = 900
+
 SECRET_GROUP = "Password or SSH Key"
 SENSOR_TYPES = ["upload_speed", "download_speed", "download", "upload"]
 
@@ -59,7 +63,7 @@
 )
 
 
-async def async_setup(hass, config):
+async def async_setup(hass, config, retry_delay=FIRST_RETRY_TIME):
     """Set up the asuswrt component."""
 
     conf = config[DOMAIN]
@@ -77,10 +81,30 @@ async def async_setup(hass, config):
         dnsmasq=conf[CONF_DNSMASQ],
     )
 
-    await api.connection.async_connect()
+    try:
+        await api.connection.async_connect()
+    except OSError as ex:
+        _LOGGER.warning(ex)
+        pass
+
     if not api.is_connected:
-        _LOGGER.error("Unable to setup component")
-        return False
+
+        _LOGGER.warning(
+            "Error connecting %s to %s. Will retry in %s seconds...",
+            DOMAIN,
+            conf[CONF_HOST],
+            retry_delay,
+        )
+
+        async def retry_setup(now):
+            """Retry setup if a eroor happens on asuswrt API."""
+            await async_setup(
+                hass, config, retry_delay=min(2 * retry_delay, MAX_RETRY_TIME)
+            )
+
+        async_call_later(hass, retry_delay, retry_setup)
+
+        return True
 
     hass.data[DATA_ASUSWRT] = api