I've got an iptv stream and when I watch it upstairs through the pc the connection is absolutely perfect.

When I try and watch on zgemma box downstairs there are really bad buffering issues. The channel will load but every 6 seconds or so there is a split second break in commentary and then 6 seconds of normal before repeating. This is the best case scenerio, often it is just unwatchable.

I loaded the m3u file into an amazon firestick from a friend and the same m3u link is working fine on the downstairs TV which leads me to believe it is the box that is the problem.

Has anyone come across this before and if so is there an easy fix??