Wired Ethernet vs Wi-Fi for IPTV: when the cable is worth it
Wi-Fi is enough for Netflix. It is often not enough for 4K IPTV during peak evenings. Here is when wiring your TV actually matters.
"Wi-Fi is fine" is true for Netflix at 1080p on a device 3 metres from the router. For 4K IPTV on a TV two floors down? Often not. Here is how to decide whether to run an Ethernet cable.
When Wi-Fi is enough
- 1080p IPTV, same-floor router, <10m: Wi-Fi 5 or Wi-Fi 6 both fine.
- Netflix and prime streaming only: adaptive bitrate masks Wi-Fi wobble.
- Off-peak (daytime) viewing: fewer neighbours crowding the airwaves.
When Wi-Fi is NOT enough
- 4K IPTV (20+ Mbps sustained): Wi-Fi throughput drops below this regularly in congested blocks of flats.
- Sports-night viewing: IPTV doesn't have adaptive bitrate — one packet loss = stutter you see.
- TV + 2+ walls from router: 5 GHz attenuates fast; 2.4 GHz is too slow.
Alternatives to running cable
The quick test
From the IPTV-device (not your laptop, not your phone in your hand): run a bufferbloat test + speed test during Saturday 8pm. If speed <25 Mbps or bufferbloat grade worse than B, your Wi-Fi is limiting IPTV. Wire it or improve your Wi-Fi.