Update for_maclinux_users.md

content/quickstarts/connecting/for_maclinux_users.md

@@ -129,6 +129,11 @@ from the window.
 
 {{< figure src="/images/7274511.png" height="450" >}}
 
+If you run into issues with two-factor authentication, try the command below for a quick fix:
+{{< highlight bash >}}
+$ rm -rf ~/Library/ApplicationSupport/Cyberduck
+{{< /highlight >}}
+
 Mac Tutorial Video
 ------------------