4G seems to be a problem in this phone. Shows full network, but just doesn't work. I tried selecting just 3G/2G, and the speed is alright then. On auto select 4g/3g/2g, it gives pathetic internet speeds. Not an issue with the sim as it's working fine...

If I keep the network to 3G only on Vodafone Idea, it works good, that too after a restart. On auto 4g/3g, it shows all bars, but hardly works.

Same here. extremely slow internet when using sim which is working good on other phones.

Getting extremely poor speeds on 4g network, while I was getting great speeds with the same sim on my older phone. Samsung please resolve this on priority.