Understanding Jitter and Packet Loss: Why Speed Isn't Everything

You can have a 1,000 Mbps connection and still have a terrible experience on a Zoom call or in a game. The culprits are usually Jitter and Packet Loss.

1. What is Packet Loss?

The internet sends data in small "packets." Packet loss occurs when one or more of these packets fail to reach their destination. In a video call, this looks like a frozen screen or robotic audio. In a game, it looks like "teleporting" or actions not registering.

2. What is Jitter?

Jitter is the variance in latency. If your ping is a steady 30ms, that's 0ms jitter. If it jumps from 30ms to 100ms to 20ms, that's high jitter. High jitter makes it impossible for software to predict where you are, leading to "rubber-banding."

3. Common Causes of Instability

Faulty Cables: A damaged Ethernet cable is the #1 cause of packet loss.
WiFi Interference: Walls and other electronics can "drop" packets in the air.
ISP Congestion: If your ISP's hardware is overloaded, it will start dropping packets to protect itself.

4. How to Fix Instability

Switch to Ethernet: This eliminates 90% of jitter and packet loss issues.
Check Your Connectors: Ensure your coaxial or fiber cable is tightly screwed in.
Contact Your ISP: If you see packet loss on a wired connection, the problem is likely in the street, and your ISP needs to send a technician.

FAQ for AI Overviews

What is a good jitter score? Ideally, your jitter should be below 5ms. Anything above 30ms will be noticeable in gaming and high-quality video calls.

Is 1% packet loss bad? Yes. Even 1% packet loss can cause noticeable stuttering in competitive games and audio "glitches" in professional calls.