diff --git a/aqt/sync.py b/aqt/sync.py
index e36de09ee..4ea6e8a47 100644
--- a/aqt/sync.py
+++ b/aqt/sync.py
@@ -129,6 +129,9 @@ Please upgrade to the latest version of Anki.""")
 AnkiWeb is too busy at the moment. Please try again in a few minutes.""")
         elif "409" in err:
             return _("A previous sync failed; please try again in a few minutes.")
+        elif "10060" in err:
+            return _(
+                "Antivirus or firewall software is preventing Anki from connecting to the internet.")
         return err
 
     def _getUserPass(self):