Having never heard of NetExtender before, I can only go on how you've described it in your post, and I have to say, Macs don't need third-party programs to perform 'maintenance' on them. One thing I can say is that before you upgrade your operating system, you should always make sure that all of your applications, plug-ins, drivers, extensions, etc., are compatible with what you're upgrading to. That could be part of the problem, should this program not be what I think it sounds like. Are you running the most current version, and is that version compatible with El Capitan?
Secure Mobile Access 8.1 is the final version that has Mac NetExtender support. Dell SonicWALL strongly recommends using Dell SonicWALL Mobile Connect for Mac OS X devices instead of NetExtender, currently and in future releases. SecuExtender, the Zyxel SSL VPN technology, works on both Windows and Mac operating systems. For Windows users, SecuExtender is free from pre-installation of a fat VPN client. Zyxel security appliances will push VPN client and launch auto-installation while user logs in web-based authentication portal.
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Sonicwall Netextender For Mac Download
Dec 26, 2015 10:00 AM