My hotspot has been working fine since I got the phone. It worked earlier today. Tonight I tried to use it and it didn't respond. I went to settings and it had a load screen reading, "checking subscription" and then said my phone could not connect to the Verizon network. My browser works, I have full bars- it just won't let my hotpot work. Very frustrated as night time is usually my only free time and of course Verizon has no customer service during those hours. I have plenty of data left to use. What is the issue?