HTC Amaze 4G

Ah finally a response, well I kind of think it is a problem with the phone, or setting on the phone,
I spoke to t-mobile and went to the t-mobile store,
And they said like you it is probably a setting , But on their side, ???
They said they will put in a trouble ticket. Unfortunately after a few days they called back and asked if was working better but I told them No, and they did not know what to do?
I try to use the phone cause I like most of the newer features of it but when I want to use the hotspot I pull the sim card and use my other phone. and it works great just like a wireless router in your house FAST.

But that is why think it is the phone my old phone, a MyTouch 4g works better. well I just had an Idea,
You said it is probably a setting, maybe it is on the phone the setting, I will see if I can see what the setting are on my old phone and see if they are the same on the new one,
Funny thing happened the other day I turned the phone on in the morning and it said the sim card had to be changed cause the wifi calling would not work, I did not call t-mobile or go to a store cause i have not had the time but it has been working fine since then.
I will check my old phone and repost.