diff --git a/fet2020/authentications/authentications.py b/fet2020/authentications/authentications.py
index 4d01d570..8d469d6a 100644
--- a/fet2020/authentications/authentications.py
+++ b/fet2020/authentications/authentications.py
@@ -28,6 +28,9 @@ def authentication(username, password):
     except LDAPBindError as e:
         logger.info('Username does not exist. Error: {}'.format(e))
         username = None
+    except Exception as e:
+        logger.info('Connection to server lost. Error: {}'.format(e))
+        username = None
 
     if not has_user:
         username = None