I'm having the same EXACT problem... I haven't found a ton of others experiencing it, but it's definitely not just me. It started over the last two weeks and is insanely aggravating. During crucible (and twice turning in bounties in the tower) everyone will stop moving and a weasel error will pop up, but that's not the end of the problem. Everything on the Xbox One network/internet related shuts down completely, and acts as if it isn't there or isn't functioning. This has happened over 20 times recently. Then, to reset the console, you have to hold down the front power button to shut down. Because if you do it with the controller or through Settings, the power button will just pulse for 10 mins... 30 mins... sometimes even forever. It never fully shuts down. I've played since day 1 without a single problem until now. Something caused this and nothing has changed on my end other than system and game updates.