I just got a new Samsung Z Fold 6. I activated the phone and have been using it for the last few days. This morning I had a notification that my phone was not registered on the network. I could not place or receive phone calls, but I was receiving texts over wi-fi. I eventually restarted my phone and it seems to be registered again. This is my first experience with an eSIM card and with a Samsung phone. Is this a known problem with either of those? Or is this a network issue? $2,000 is a lot of money to pay for a phone that will randomly become unregistered.