I used to get Nightingale and it stopped about a week ago. I have done many things to solve the problem and I have linked the post here: https://www.bungie.net/en/Forums/Post/219902448?page=0&sort=0&showBanned=0&path=1 Anyway to see if it's your internet causing the problem, connect your console to your mobile phone's hotspot. If it doesn't work it is your hardware. Though if it does work I would recommend to call your ISP and do tests on your network while you launchDestiny. For me it was the infrastructure causing the issue. I know how it feels to not being able to play Destiny or it works rarely (like me) I had it from 30/10/16 till 8/1/17 Good Luck

What have you already done? Nightingale occurs when data can't be read properly by the game. If your lucky, it's just a cached file and clearing your cache will resolve the issue. If not, you may need to uninstall and reinstall Destiny. If that still doesn't help, you may have a problem with your disc (if using a physical copy), disc reader or hard drive.