902 Error solved

I was also having the 902 error. I called DirecTV and they told me to change my password which I did. But that did not help at all. Then I read on a forum that all I had to do was change the Wi-Fi to a hotspot on my phone and log in that way and that took care of the problem. So basically you reset your DirecTV and when you log in to your Wi-Fi you select the hotspot from your phone then you go through all the steps and your logged in and then go back to your Wi-Fi that you're using your home in the first place and that took care of my problem. I hope this helps.