impossible to view channel on my Hisense 43n2170pw smart tv

[phils]

dear all,

i have Hisense Smart TV 4E30, i manage to launch SS-IPTV through web and add playlist normally.
the issue i have currently is that no channel can be view on the TV.

it keeps saying buffering and then unable to view channel.

can someone help me by telling me what i did wrong?

hisense smart Tv is the model we have easily in cameroon.

thanks