Haha very true. But this is annoying! 6x in a row, the install stops at 50% and the error occurs.
First try to delete the update.
Next power off the system completely, and unplug it from the wall, letting it sit idle for 30 seconds.
Plug it back in and leave it alone for now.
Reset your modem and router, giving them about 30 seconds of unplugged time at the same time.
Plug them back in, modem usually first, but same time should be fine.
Turn on console when internet has been restored.
Try to download update again.
If error persists, Delete Destiny completely and redownload from scratch.