If you're persistently getting these, it could be a hardware problem. Even though you've already done it, please try the following: 1. Delete all Destiny content; 2. Clear your console's cache; 3. Power down your console and unplug it for 30 seconds; 4. During that time, restart your router. If possible, please use an ethernet cable or even just move your console closer to the router; 5. Once the router is up and running, start up your console and reinstall only Destiny's base game; 6. If that works, please go ahead and install each DLC, one at a time. If none of that works, then I'm sorry, but this does most likely indicate there's a hardware issue. You might want to try downloading The Taken King: Legendary Edition from the Xbox Store itself if you own all that content rather than trying from your Download History, but only if it allows that.