Hi all. I need advice on how to configure wireless connection for my HpyyTV IPTV. On my STB, I can turn on wifi but it can only surf the net and play store. IPTV will not work. Can anyone advice me on how to configure it to be able to stream wirelessly? My router model is RG-DLINK-WBR2300 from TM and the STB is the latest white one.
My current setup is as below:
Modem and router is upstairs where as STB is downstairs. So I have to pull a very long ethernet cable from the red color LAN port on the TM router to STB. I do not wish to use any Homeplugs.
Any advice on how to configure it is much appreciated.

If the configurations has been discuss, kindly point me to the site as i can't seem to find it.

Thank you.