--- a/eric6/WebBrowser/Sync/FtpSyncHandler.py	Sat Nov 21 19:31:16 2020 +0100
+++ b/eric6/WebBrowser/Sync/FtpSyncHandler.py	Sun Nov 22 16:04:59 2020 +0100
@@ -409,5 +409,5 @@
                 code = err.args[0].strip()[:3]
                 if code == "421":
                     self.__connected = False
-            except IOError:
+            except OSError:
                 self.__connected = False