diff --git a/agentops/client.py b/agentops/client.py
index 8c2fa188..4001d4d1 100644
--- a/agentops/client.py
+++ b/agentops/client.py
@@ -212,7 +212,11 @@ def start_session(self, tags: Optional[List[str]] = None, config: Optional[Confi
 
         self._session = Session(uuid4(), tags or self._tags, host_env=get_host_env())
         self._worker = Worker(config or self.config)
-        self._worker.start_session(self._session)
+        start_session_result = self._worker.start_session(self._session)
+        if not start_session_result:
+            self._session = None
+            return logging.warning("AgentOps: Cannot start session")
+
         logging.info('View info on this session at https://app.agentops.ai/drilldown?session_id={}'
                      .format(self._session.session_id))
 
diff --git a/agentops/worker.py b/agentops/worker.py
index d409ee10..6b7320ef 100644
--- a/agentops/worker.py
+++ b/agentops/worker.py
@@ -49,10 +49,15 @@ def start_session(self, session: Session) -> None:
                 "session": session.__dict__
             }
             serialized_payload = json.dumps(filter_unjsonable(payload)).encode("utf-8")
-            HttpClient.post(f'{self.config.endpoint}/sessions',
-                            serialized_payload,
-                            self.config.api_key,
-                            self.config.parent_key)
+            res = HttpClient.post(f'{self.config.endpoint}/sessions',
+                                  serialized_payload,
+                                  self.config.api_key,
+                                  self.config.parent_key)
+
+            if res.code != 200:
+                return False
+
+            return True
 
     def end_session(self, session: Session) -> None:
         self.stop_flag.set()