I just factory reset the pineapple, Installed the files from Easy-Tether . I also factory reset the Galaxy S4 and started over from scratch on that. I however have the same issue.
The RSA key number is the same every time. How or where can I manually add it to the pineapple or the Device i'm not sure where it is supposed to go.
Something causes my device to randomly disconnect and reconnect. Every time this happens the " Allow usb debugging" prompt shows up again. I can also force this behavior by plugging and unplugging the phone from the pineapple. The pinepple will have an "uptime" of many days. So the pineapples not restarting.
My devices (laptops, wifi phones,smart tv's stay connected to the Pineapple however there is no internet connection until I click the "Allow usb debugging" button again.