I'm having the exact same issues with my Iphone X.   Mine has one bar (maybe) and had always had 5 in the past.  Doesn't matter if I'm home or out of state or country.  Same thing! I called Verizon and they said all looks good. SOMETHING happened! I use my phone for my work and if it doesn't change, I'm switching to another provider and a different phone BOTH! I have had Verizon for 30 years, but my loyalty will end if they don't step up and take care of the problem!!!  #Verizon #Apple