diff --git a/aqt/sync.py b/aqt/sync.py
index 392dc5227..15b5fb62e 100644
--- a/aqt/sync.py
+++ b/aqt/sync.py
@@ -132,6 +132,10 @@ AnkiWeb is too busy at the moment. Please try again in a few minutes.""")
         elif "10061" in err or "10013" in err:
             return _(
                 "Antivirus or firewall software is preventing Anki from connecting to the internet.")
+        elif "Unable to find the server":
+            return _(
+                "Server not found. Either your connection is down, or antivirus/firewall "
+                "software is blocking Anki from connecting to the internet.")
         elif "407" in err:
             return _("Proxy authentication required.")
         elif "collection sanity check failed" in err: