diff --git a/sagemcom_api/client.py b/sagemcom_api/client.py
index 39b7221..f5ee81a 100644
--- a/sagemcom_api/client.py
+++ b/sagemcom_api/client.py
@@ -51,6 +51,7 @@
     UnauthorizedException,
     UnknownException,
     UnknownPathException,
+    UnsupportedHostException,
 )
 from .models import Device, DeviceInfo, PortMapping
 
@@ -203,6 +204,10 @@ async def __post(self, url, data):
                 result = await response.text()
                 raise BadRequestException(result)
 
+            if response.status == 404:
+                result = await response.text()
+                raise UnsupportedHostException(result)
+
             if response.status != 200:
                 result = await response.text()
                 raise UnknownException(result)
diff --git a/sagemcom_api/exceptions.py b/sagemcom_api/exceptions.py
index 4fb2933..b547e34 100644
--- a/sagemcom_api/exceptions.py
+++ b/sagemcom_api/exceptions.py
@@ -18,6 +18,10 @@ class UnknownException(BaseSagemcomException):
     """Unknown exception."""
 
 
+class UnsupportedHostException(BaseSagemcomException):
+    """Raised when API is not available on given host."""
+
+
 # Exceptions provided by SagemCom API
 class AccessRestrictionException(BaseSagemcomException):
     """Raised when current user has access restrictions."""