Who I have the same questioned this topic

I have an iPhone 7 Plus and having terrible data coverage in subway stations in nyc since moving to Verizon from ATT 2 months ago. Other people’s devices immediately get connected to their cellular  network when the train comes into stations and mine did too when I was with ATT. Now, my device shows No Service right up until the train starts leaving the station, a full 30 seconds behind what it should.

No one in Tech support seems to understand what is happening.

is This happening to anyone else? It’s beyind frustrating and I’m on the verge of canceling with Verizon and going back to ATT. otherwise service is fine but this is a HUGE sticking point.

Please advise. Do I need to change a setting in my phone? Does Verizon data just hate my phone? Is it their network? What the heck.