And it is true we did not get a boarding pass after buying new phones so they would be faster and practicing and signing in the second 7am arrived.
Sorry you wasted your money on new phones you may not have needed. But you need to understand the technology you are dealing with.
It is not a question of how fast your phone is, or how fast your internet connection is. The connection to
MDE is a very simple database. The database can on handle a certain number of queries into the database at any single milliseconds. Those 1st queries get taken up the second the connection opens. Now, there are hundreds of additional query spots that open up in the seconds after, but if you don't get extremely lucky to get one of the very first queries or access to the DB, everything beyond that is pure chance. And it is luck. you have 10,000 people trying to get 1,000 spots.
Your phone hardware itself has zero impact. Wifi vs Cellular is the only thing that makes a difference. Not because of speed. But because Disney's wifi had multiple access points all over the parks and resorts. Each access point has a certain number on connections it can make to the network from that access point. If you are in a park with hundreds of users trying to connect at that same access point, someone is going to get denied access.
While the cellular network has similar contraints, they generally allow more connections. but anyone who has every tried to send a text at a football game or concert can tell you. Large number of people trying to use their phones doesnt work well for anyone.
The very low amount of data being sent makes it so internet bandwidth does not matter.
So, to sum all of this up.........It is all complete luck. You either have it, or you dont.