Frequent net disconnection issue

[MyBoy]

I am facing frequent internet disconnection issue in Jio sim, my internet is automatically getting diconnected while downloading any big file.

I have checked my phone's settings, everthing is looking fine, please help. Thanks.

 

[Rastinder]

I am thinking to buy this phone...are you facing this problem from 1st day(when u bought the sim)?
Is everyone else facing this kind of issue?

 

[R$K]

Are you using LYF Mobile ? Or using in another phone ?

 

[MyBoy]

Sorry to bother you all, it is working fine now after selecting LTE only option.

I am not using Lyf & neither samsung phones.