Welcome to Justanswer.com, my name is ***** ***** I will do my best to assist you.
It sounds like you are trying to use the garmin dashboard / communicator plugin to communicate with your Aera 796.
Instead, try using garmin express, once installed from this page
You should be able to run Garmin express on your computer. Connect your Aera to it. And update the software.
if you get stuck or run into any issues, let me know.
And if you would prefer, I can connect to your computer via a secure remote session where I could go through all the needed steps for you, on screen. if youd like to try that send a reply letting me know youd like me to connect. I'll send you that guaranteed offer and we can proceed.
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