Apple Watch Ultra 2 not syncing

Currently experiencing the same issue. First day I had my ultra 2, everything worked. I wake up the next day and barely receive any notifications or not at all. I’ve re-set. I’ve repaired mutiple times. I’ve set it up as a new watch a second time. I’ll randomly get stuff for a little then it just stops again. I’m at my ends with it. Not sure what to do. I’ve had the watch for less than a week.

Something similar happened to me last week only a day or two after updating to 10.4. My Ultra 2 suddenly disconnected from my iPhone 14 Pro Max running 17.4. Not only would it not connect, but it would also randomly power cycle, and would turn back on by itself if I turned it off. After a whole day after my Watch wouldn't receive anything from my iPhone and the find my iPhone ping wouldn't work. I went into my Watch's settings (on the watch itself) and found that Bluetooth was off. No matter what I did, it would not turn back on. I couldn't even switch the little on/off button. After an hour of screen-sharing my iPhone's camera to show my watch with Apple Support and another 30 minute appointment with the Geniuses at my Apple Store, they couldn't figure it out either. After all that, I just received a replacement watch today since the AWU2 is still under warranty. Give Apple Support a message, they'll call and help you out. Hope this was of any help. Nothing like this had been posted when this happened to me last week.

Same issue, I’ve had my ultra 2 for about a week and it won’t sync at all. I had the same issue with my gen 1 ultra and basically gave up because even with support it still never worked. I’ve tried it in every kind of work out. Vo2 was a huge reason for getting these watches and I thought they would have fixed this by now.