My Verizon LTE signal has deteriorated such that I can no longer get more than one bar. Used to be able to hotspot. Now can barely make a call. This affects all Verizon phones at this location. Verizon needs to up their game or I will have to switch to AT&T
We'd want to know as soon as possible if you were having some sort of issue with your services. There's a lot more on this that we would need to know in order to assist you. While no carrier can guarantee indoor coverage, where are you at that this is happening? How far do you need to travel until your connection improves? When exactly did this start?
Then switch. No one should be obligated to stick to a carrier if they aren't getting good coverage. Posting on a forum like this is yelling into the abyss.