diff --git a/src/omero/gateway/__init__.py b/src/omero/gateway/__init__.py
index da42cb4b2..a955c2214 100644
--- a/src/omero/gateway/__init__.py
+++ b/src/omero/gateway/__init__.py
@@ -2092,8 +2092,14 @@ def _resetOmeroClient(self):
         logger.debug(self.ice_config)
 
         if self.c is not None:
-            self.c.__del__()
-            self.c = None
+            try:
+                if self.c.getSessionId() !=  self._sessionUuid:
+                    self.c.__del__()
+                    self.c = None
+            except omero.ClientError: # no session available
+                self.c.__del__()
+                self.c = None
+                pass
 
         if self.host is not None:
             if self.port is not None: