I'm creating an app that connects multiple phones via bluetooth, so I'm using the Android Multi Bluettoth Library , this library creates a Client Server system, where one of the applications and the server and the others are clients, but when testing I realized that some cell phones have connection problems.
For the tests I'm using two Sansungs, a Galaxy J2 Prime , and a Galaxy A5 , when the J5 and the server I can connect to my A5 easily, but if I try to use A5 as the server J5 is trying to connect without being able to, is there any reason for this to occur and how can I fix it?