diff --git a/CHANGELOG.md b/CHANGELOG.md
index 416da9d6..fe7a5c80 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 - basic_logging_setup only handles sdc logger, no more side effect due to calling logging.basicConfig. 
+- fixed wrong response for SetContextState message. [#287](https://github.com/Draegerwerk/sdc11073/issues/287
+- fixed connection problem when provider closes socket after first request. [#289](https://github.com/Draegerwerk/sdc11073/issues/289
 
 ### Changed
 - change python classes of `addressing_types.py` to match ws-addressing standard of 2006 instead of 2004 
diff --git a/src/sdc11073/consumer/consumerimpl.py b/src/sdc11073/consumer/consumerimpl.py
index c90fdd9f..cc4becb2 100644
--- a/src/sdc11073/consumer/consumerimpl.py
+++ b/src/sdc11073/consumer/consumerimpl.py
@@ -446,7 +446,7 @@ def start_all(self, not_subscribed_actions: Iterable[str] | None = None,
         self._mk_hosted_services(self.host_description)
         self._logger.debug('Services: {}', self._service_clients.keys())  # noqa: PLE1205
 
-        used_ip = self.get_soap_client(self._device_location).sock.getsockname()[0]
+        used_ip = self.get_soap_client(self._device_location).sock_name[0]
         self._network_adapter = network.get_adapter_containing_ip(used_ip)
         self._logger.info('SdcConsumer for {} uses network adapter {}',  # noqa: PLE1205
                           self._device_location,
diff --git a/src/sdc11073/provider/porttypes/contextserviceimpl.py b/src/sdc11073/provider/porttypes/contextserviceimpl.py
index 37291dc1..0582755d 100644
--- a/src/sdc11073/provider/porttypes/contextserviceimpl.py
+++ b/src/sdc11073/provider/porttypes/contextserviceimpl.py
@@ -56,7 +56,7 @@ def _on_set_context_state(self, request_data):
         data_model = self._sdc_definitions.data_model
         msg_node = request_data.message_data.p_msg.msg_node
         set_context_state = data_model.msg_types.SetContextState.from_node(msg_node)
-        response = data_model.msg_types.ActivateResponse()
+        response = data_model.msg_types.SetContextStateResponse()
         return self._handle_operation_request(request_data, set_context_state, response)
 
     def _on_get_context_states(self, request_data):
diff --git a/src/sdc11073/pysoap/soapclient.py b/src/sdc11073/pysoap/soapclient.py
index 3ee292e5..5678e29e 100644
--- a/src/sdc11073/pysoap/soapclient.py
+++ b/src/sdc11073/pysoap/soapclient.py
@@ -68,6 +68,8 @@ def __repr__(self) -> str:
 class SoapClientProtocol(Protocol):
     """The expected interface of a soap client."""
 
+    sock_name: tuple[str, int] | None
+
     def __init__(self,
                  netloc: str,
                  socket_timeout: int | float,
@@ -158,6 +160,7 @@ def __init__(self,
         self._lock = Lock()
         self._chunk_size = chunk_size
         self._has_connection_error = False  # used to avoid implicit connects after an error
+        self.sock_name: tuple[str, int] | None = None
 
     @property
     def netloc(self) -> str:
@@ -186,8 +189,9 @@ def connect(self):
         self._has_connection_error = False
         self._http_connection = self._mk_http_connection()
         self._http_connection.connect()  # connect now so that we have own address and port for logging
-        my_addr = self._http_connection.sock.getsockname()
-        self._log.info('soap client No. {} uses connection={}:{}', self._client_number, my_addr[0], my_addr[1])
+        self.sock_name = self._http_connection.sock.getsockname()
+        self._log.info('soap client No. {} uses connection={}:{}',
+                       self._client_number, self.sock_name[0], self.sock_name[1])
 
     def close(self):
         """Close connection."""
@@ -195,6 +199,7 @@ def close(self):
             self._close_without_lock()
 
     def _close_without_lock(self):
+        self.sock_name = None
         if self._http_connection is not None:
             self._log.info('closing soapClientNo {} for {}', self._client_number, self._netloc)
             self._http_connection.close()