For this you work with your carrier to fix. There's no magic other than that.
I have a samsung s6 hand set I use it about 1 year. From two months I have faced a problem. This problem with data connection I have used APN manually everything is ok but data connection not complete. Have any way to connect data in my mobile phone. Please give me a solution how can I connect data. What kind of problem this is? I don't face same problem in past.