Category: Ping, Jitter & Bufferbloat

Bufferbloat is one of the hidden reasons a fast internet connection can still feel slow.

It happens when your router or network holds too much data in a queue. When this happens, your connection can become slow to respond while downloads or uploads are running.

This can make gaming, video calls and browsing feel laggy, even if your speed test shows a high Mbps result.

Quick answer

Bufferbloat is high latency while your connection is busy.

Your download speed may look fast, but your ping can become much worse when the line is under load.

This can cause lag, delays and poor real-time performance.

Why bufferbloat matters

Most people only look at download speed.

But in real life, your connection is often busy with several things at once:

• Someone streaming
• A phone backing up photos
• A game updating
• A laptop downloading files
• A video call running
• Smart devices using the network

If your connection suffers from bufferbloat, everything can feel delayed when the line is busy.

Signs of bufferbloat

You may have bufferbloat if:

• Video calls become unstable during downloads
• Games lag when someone streams
• Browsing becomes slow while uploading files
• Voice chat delays when your connection is busy
• Your speed is high but the connection feels sluggish
• Ping gets much worse during a speed test

Bufferbloat and loaded ping

Loaded ping helps show what happens to your latency while your connection is under pressure.

Normal ping may look fine when nothing is happening.

Loaded ping may become much higher during download or upload activity.

If loaded ping jumps a lot, bufferbloat may be affecting your connection.

Example

Your normal ping may be 20 ms.

But while downloading or uploading, your ping may jump to 300 ms or more.

That means the connection is still moving data, but it is responding slowly. This can cause lag and delays.

What causes bufferbloat?

Bufferbloat can be caused by:

• Router queueing issues
• Upload congestion
• Download congestion
• Poor router settings
• Too many devices using the connection
• Background cloud backups
• Large uploads
• Old equipment
• No smart queue management

How to reduce bufferbloat

You can try:

• Enable smart queue management if your router supports it
• Limit upload and download speeds slightly below your line maximum
• Pause large uploads during calls or gaming
• Use Ethernet for important devices
• Upgrade your router
• Reduce background backups
• Schedule large downloads for quiet times
• Use quality of service settings if available

Not all routers have the same settings, but better queue management can make a big difference.

Why upload can cause big problems

Upload congestion often causes noticeable bufferbloat.

For example, if your phone is backing up photos or your laptop is uploading files, your connection may become slow to respond.

This can affect the whole household, even if download speed still looks fine.

Run a speed test to see your bufferbloat.

Jitter measures how much your ping changes over time.

A stable connection should have consistent ping. If your ping jumps up and down, your jitter is higher.

High jitter can make video calls, voice calls and online games feel unstable.

Quick answer

Jitter is the variation in your connection delay.

Low jitter is good. High jitter means your connection is less stable.

Even if your download speed is fast, high jitter can make your internet feel unreliable.

Ping vs jitter

Ping measures delay.

Jitter measures how much that delay changes.

For example, if your ping stays around 20 ms, your connection is stable.

If your ping jumps from 20 ms to 80 ms to 150 ms and back again, your jitter is high.

Why jitter matters

High jitter can cause problems with real-time internet activities.

You may notice:

• Choppy video calls
• Robotic audio
• Gaming lag
• Sudden delays
• Voice call dropouts
• Unstable live streams

This is because real-time services need a steady connection.

What is a good jitter result?

As a rough guide:

Jitter result	Meaning
0–5 ms	Excellent
5–15 ms	Good
15–30 ms	Noticeable
30 ms or higher	May cause problems

Lower is better.

What causes high jitter?

High jitter can be caused by:

• Weak Wi-Fi signal
• Router problems
• Network congestion
• Too many connected devices
• Background downloads
• Mobile signal changes
• ISP routing issues
• VPN usage
• Poor quality equipment

Wi-Fi problems are one of the most common causes.

How to reduce jitter

Try the following:

• Move closer to your router
• Use Ethernet if possible
• Restart your router
• Pause downloads and uploads
• Disconnect unused devices
• Avoid testing while streaming
• Turn off VPNs
• Upgrade an old router
• Test at different times of day

If jitter is much better on Ethernet than Wi-Fi, your Wi-Fi may be the problem.

Jitter and gaming

For gaming, stable latency is very important.

High jitter can cause sudden lag spikes. This can feel worse than having a slightly higher but stable ping.

A stable 40 ms ping may feel better than a connection that jumps between 20 ms and 150 ms.

Jitter and video calls

Video calls need a steady connection.

High jitter can cause:

• Audio breaking up
• Video freezing
• Delays
• People speaking over each other
• Poor call quality

If your video calls are unstable, check jitter as well as upload speed.

Run a speed test to see your jitter.

What Is Ping?

Ping measures how quickly your device gets a response from another server on the internet.

It is usually shown in milliseconds, written as ms.

The lower your ping, the more responsive your connection usually feels.

Quick answer

Ping is the delay between your device and the server it is communicating with.

Low ping is good. High ping can cause lag, delays and a sluggish internet experience.

Ping is especially important for gaming, video calls, voice calls and real-time apps.

Why ping matters

Download speed tells you how much data your connection can move. Ping tells you how quickly your connection responds.

This is why a connection can have high Mbps but still feel slow.

Ping matters for:

• Online gaming
• Video calls
• Voice calls
• Remote work
• Live chats
• Online meetings
• Remote desktops

What is a good ping?

As a rough guide:

Ping result	Meaning
Under 20 ms	Excellent
20–50 ms	Good
50–100 ms	Usable
100–150 ms	Noticeable delay
Over 150 ms	Lag likely

The ideal ping depends on what you are doing and where the server is located.

Ping and online gaming

Ping is very important for gaming.

If your ping is high, your actions take longer to reach the game server. This can cause:

• Lag
• Delayed movement
• Missed shots
• Rubber-banding
• Slow response
• Frustrating gameplay

For competitive gaming, lower ping is better.

Ping and video calls

High ping can also affect video calls.

You may notice:

• Delayed replies
• People talking over each other
• Audio lag
• Video delay
• Calls feeling unnatural

Stable, low ping helps calls feel smoother.

Why ping can be high

Ping can be affected by:

• Distance to the server
• Wi-Fi signal problems
• ISP routing
• Network congestion
• VPN usage
• Mobile signal quality
• Router issues
• Other people using the connection

If you are gaming on an international server, your ping will usually be higher than on a local server.

How to improve ping

You can try:

• Use Ethernet instead of Wi-Fi
• Move closer to your router
• Restart your router
• Stop background downloads
• Turn off VPNs
• Choose closer game servers
• Reduce the number of devices using the connection
• Check if your ISP has routing issues

Ping vs speed

Ping and speed are not the same thing.

A fast download speed does not always mean low ping.

For example, a 200 Mbps connection can still feel bad for gaming if the ping is unstable.

That is why a good speed test should show both speed and latency.

Run a speed test to see your ping.