diff --git a/ansys/dpf/core/core.py b/ansys/dpf/core/core.py
index 47c4e4d79a..81dda33228 100644
--- a/ansys/dpf/core/core.py
+++ b/ansys/dpf/core/core.py
@@ -25,6 +25,12 @@
     object_handler
     )
 
+try:
+    from grpc import _channel  # noqa: F401
+    # weirdly necessary to delete LegacyGrpcError
+except ImportError:
+    pass
+
 LOG = logging.getLogger(__name__)
 LOG.setLevel("DEBUG")
 
diff --git a/ansys/dpf/core/model.py b/ansys/dpf/core/model.py
index 70a5e6eb7a..c77e49ec26 100644
--- a/ansys/dpf/core/model.py
+++ b/ansys/dpf/core/model.py
@@ -412,9 +412,9 @@ def _load_result_info(self):
         op.inputs.connect(self._stream_provider.outputs)
         try:
             result_info = op.get_output(0, types.result_info)
-        except _InactiveRpcError as e:
+        except Exception as e:
             # give the user a more helpful error
-            if "results file is not defined in the Data sources" in e.details():
+            if "results file is not defined in the Data sources" in e.args():
                 raise RuntimeError("Unable to open result file") from None
             else:
                 raise e
diff --git a/ansys/dpf/core/server.py b/ansys/dpf/core/server.py
index e45b91ed32..53139daf64 100644
--- a/ansys/dpf/core/server.py
+++ b/ansys/dpf/core/server.py
@@ -127,7 +127,7 @@ def start_local_server(
         load_operators=True,
         use_docker_by_default=True,
         docker_config=RUNNING_DOCKER,
-        timeout=5.,
+        timeout=20.,
         config=None,
         use_pypim_by_default=True
 ):