iptv boxes question

[leethelegend]

I have a Wi-Fi extender (https://www.harveynorman.ie/computi...rs/tp-link-ac750-wi-fi-range-extender-en.html) and it's hooked up to my iptv box upstairs. I have the power cable, the HDMI cable and the Ethernet cable hooked up to my box via the extender. I am watching the Arsenal match in my room and the same match on downstairs. I am thinking with the two matches on at the same time, two different providers. I'm thinking would it be interfering because the one downstairs is stopping and starting. When i got the externder, the manual says press this the wps to interact with my extender.
Would this be a problem as it's coming from the Wi-Fi downstairs?

 

[safcsat]

Quite possibly just bandwidth. What sort of speeds do you get up/downstairs? Test when streams are on and off. Take note of the ping as well.