Jio 4g settings

Some times if you insert the new jio sim into your phone you want be getting the internet even if the cellular network is turned on.I got this problem with my Iball tab Snap 4G2.

It was the problem with the APN settings.The access point just comes and goes.Even if I try to save new settings it will be automatically erased.But then I found that with this settings I was able access the internet in Jio 4G.Just try it and tell me if its works or not.