Index: /trunk/src/org/openstreetmap/josm/io/MessageNotifier.java
===================================================================
--- /trunk/src/org/openstreetmap/josm/io/MessageNotifier.java	(revision 15250)
+++ /trunk/src/org/openstreetmap/josm/io/MessageNotifier.java	(revision 15251)
@@ -89,6 +89,10 @@
                     }
                 }
+            } catch (OsmApiException e) {
+                // We want to explicitely display message to user in some cases like when he has been blocked (#17722)
+                ExceptionDialogUtil.explainOsmTransferException(e);
             } catch (OsmTransferException e) {
-                ExceptionDialogUtil.explainOsmTransferException(e);
+                // But not message for random network or API issues (like in #17929)
+                Logging.warn(e);
             }
         }