Network

Ethernet vs Wi-Fi — what actually changes

3 min read · Beginner
The essentials in 10 seconds
  • Wi-Fi isn't "too slow" — it's irregular, and that's the problem.
  • This irregularity is called jitter: it causes crackling even with good bandwidth. Your bubble sees it: “Wi-Fi” under your network, a buffer that grows, then “Your network is irregular”.
  • An Ethernet cable = stable and predictable latency, regardless of network activity.
  • Bandwidth has almost no impact — audio uses under 1 Mbps per musician (HD video adds 1 to 2).

The real problem: jitter, not bandwidth

When people think "bad connection", they think bandwidth — download speed. In reality, for playing live music, what matters is the regularity of the connection.

Jitter is the variation in latency from one audio packet to the next. If one packet arrives after 20 ms, the next after 35 ms, the next after 12 ms — even if the average is fine, the sound arrives in uneven chunks. The result: crackling, glitches, brief dropouts.

Wi-Fi
Crackling
Ethernet
Smooth audio

Each bar = an audio packet. Height represents arrival delay.

The numbers

Connection type What your bubble shows For playing
Ethernet (cable) “Ethernet” under your network; a small buffer that does not move The safe choice
Wi-Fi 5 GHz “Wi-Fi” under your network; a buffer that grows as soon as a neighbour downloads Possible alone on the network, never guaranteed
Wi-Fi 2.4 GHz Frequent bursts; “Your network is irregular” Avoid
4G / 5G mobile “mobile network”; buffer at its maximum, dropouts Insufficient
Active VPN A detour for every packet: a higher, irregular Network line Turn off the VPN
Bandwidth (almost) doesn't matter.
Audio uses under 1 Mbps per musician at maximum quality; HD video adds 1 to 2. Whether you have 30 Mbps or 1 Gbps, it doesn't change latency or jitter. It's regularity that matters, not speed.

Why Wi-Fi is irregular

Wi-Fi is a shared radio technology. Several things disrupt its regularity:

Channel contention
Your neighbours use the same radio spectrum. Their downloads create collisions and retransmissions.
Physical obstacles
Every wall, door or floor the signal crosses reduces quality and increases retransmissions.
Power management
Wi-Fi modulates its transmit power based on distance. These adjustments create micro-pauses.
Retransmissions
A lost packet is retransmitted — taking variable time depending on current congestion.

How to plug in via Ethernet

Diagram: a laptop connected to the internet router with an Ethernet cable
The connection at a glance: computer → Ethernet cable → internet router.
1
Computer → RJ45 cable → router
A Cat5e or Cat6 cable is more than enough. Length: up to 100 m with no quality loss. Sold everywhere, starting at €5.
RJ45 Ethernet cable (connectors on both ends)
2
No Ethernet port on your Mac/PC?
A USB-C → Ethernet adapter works perfectly (€10–20). USB-C 3.0 adapters add no measurable latency.
USB-C to Ethernet RJ45 adapter
3
Disable Wi-Fi once plugged in
On macOS: Wi-Fi menu → Turn off Wi-Fi. On Windows: Settings → Network → Wi-Fi → off. Depending on your system's configuration, Wi-Fi can stay prioritized even with Ethernet plugged in — which is why it's worth turning off.

If Ethernet really isn't an option

In some setups (rental apartment, too-short cable, desktop far from the router), Ethernet isn't feasible. In that case:

Turn off the VPN before playing.
An active VPN sends every audio packet on a detour: the trip gets longer and irregular. In the bubble, the Network line rises and the buffer grows. Turn it off before opening Jamodio.
If it does not work
  • The cable is in but the bubble still says “Wi-Fi”: your computer prefers Wi-Fi. Turn it off (macOS: Wi-Fi menu; Windows: Settings → Network) and watch the bubble update.
  • The Ethernet port light stays off: faulty cable or adapter. Try another cable, another port on the router.
  • On Ethernet, still bursts: look at the chain in the bubble. If the alert is on the other musician's network, it is not at your end. If it is “Your computer is overloaded”, close applications.
  • The Network line is high but stable: that is distance; nothing to fix on the cable side.

Still stuck? Write to support@jamodio.com with a screenshot of the bubble: we reply within 24 hours.

Network checklist
  • Ethernet cable plugged: computer → router (no extra switch or hub)
  • Wi-Fi disabled on the computer once the cable is in
  • VPN disabled
  • No downloads running (system updates, backups)
  • Fiber or DSL? Both work: regularity is what counts, and the bubble shows it to you