diff --git a/alab_management/lab_view.py b/alab_management/lab_view.py
index 61d2eb1d..e0e9eb80 100644
--- a/alab_management/lab_view.py
+++ b/alab_management/lab_view.py
@@ -121,7 +121,6 @@ def request_resources(
         request_id = result["request_id"]
         timeout_error = result["timeout_error"]
         if timeout_error:
-            self._resource_requester.release_resources(request_id=request_id)
             raise TimeoutError
         else:
             devices = result["devices"]
diff --git a/alab_management/task_manager/resource_requester.py b/alab_management/task_manager/resource_requester.py
index 1dd5c7c0..3265c4dd 100644
--- a/alab_management/task_manager/resource_requester.py
+++ b/alab_management/task_manager/resource_requester.py
@@ -228,20 +228,27 @@ def request_resources(
             ]:
                 if timeout is not None and time.time() - start_time > timeout:
                     raise TimeoutError
-                time.sleep(0.5)
-                remaining_time = (
-                    float(timeout - (time.time() - start_time)) if timeout else None
+                time.sleep(0.1)
+
+            result = f.result(timeout=None)
+        except (
+            TimeoutError
+        ):  # cancel the task if timeout, make sure it is not fulfilled
+            if (
+                self.get_request(_id, projection=["status"])["status"]
+                != RequestStatus.FULFILLED.name
+            ):
+                self.update_request_status(
+                    request_id=_id, status=RequestStatus.CANCELED
                 )
-
-            result = f.result(timeout=remaining_time)
-        except TimeoutError:  # cancel the task if timeout
-            self.update_request_status(request_id=_id, status=RequestStatus.CANCELED)
-            # wait for the request status to be updated
-            while (self.get_request(_id, projection=["status"]))[
-                "status"
-            ] != RequestStatus.CANCELED.name:
-                time.sleep(0.5)
-            return {"request_id": _id, "timeout_error": True}
+                # wait for the request status to be updated
+                while (self.get_request(_id, projection=["status"]))[
+                    "status"
+                ] != RequestStatus.CANCELED.name:
+                    time.sleep(0.5)
+                return {"request_id": _id, "timeout_error": True}
+            else:  # if the request is fulfilled, return the result normally, wrong timeout
+                result = f.result(timeout=None)
         return {
             **self._post_process_requested_resource(
                 devices=result["devices"],
diff --git a/alab_management/task_manager/task_manager.py b/alab_management/task_manager/task_manager.py
index ea112bfe..22e3a5aa 100644
--- a/alab_management/task_manager/task_manager.py
+++ b/alab_management/task_manager/task_manager.py
@@ -404,8 +404,6 @@ def _handle_requested_resources(self, request_entry: dict[str, Any]):
                 ]
                 == RequestStatus.ERROR.name
             ):
-                self._release_devices(devices)
-                self._release_sample_positions(sample_positions)
                 return
             time.sleep(0.5)
         # label the resources as occupied