Internet Speed Test: Why Your Video is Buffering & How to Fix Slow Connection
Is your internet slow? Measure your download, upload, and Ping speeds instantly. Learn how to interpret your results, identify bottlenecks, and follow our guide to speed up your home Wi-Fi today.
Know the cause of "Slow Internet"
Websites loading slowly, videos buffering, audio cutting out during online meetings... Internet trouble is a source of stress. However, you can't take countermeasures with just "it feels slow". Knowing the current "numbers" is the shortcut to a solution.
Using the Speed Test below, you can diagnose your current connection status with a single button.
Internet Speed TestMeasure your internet connection speed (Ping, Download, Upload).3 Indicators of Test Results
Usually, three numbers appear in the speed test results. Let's understand the meaning of each.
1. Download Speed
Speed related to browsing websites, playing videos, and receiving files. This is the most important number for many people. The unit is Mbps, and the higher the number, the faster it is.
2. Upload Speed
Speed related to sending emails, posting to SNS, and live streaming. If "your video doesn't reach the other party" in an online meeting, this number might be low.
3. Ping Value
A number representing Response Time. The unit is ms (milliseconds), and the smaller the number, the better. For uses requiring real-time performance like online games or FX trading, this Ping value becomes more important than line speed (Mbps).
What is a comfortable speed standard?
Required speed varies by usage.
- Web Browsing/Email: 10-30 Mbps
- High Quality Video (4K): 30-50 Mbps
- Online Meetings: 30 Mbps or more (Stability focused)
- Online Games: 50 Mbps or more (Ping under 30ms recommended)
If the measurement result is extremely lower than this, try the following countermeasures.
Checkpoints when Internet is Slow
- Reboot Router: This has the potential to fix it most easily. Unplug, wait about a minute, and plug it back in.
- Reduce Connected Devices: Are there too many devices watching videos at the same time?
- Change Location: Walls and obstacles between you and the Wi-Fi router weaken the signal.
- Change Frequency: Try switching between 2.4GHz band (strong against obstacles but slow) and 5GHz band (weak against obstacles but fast).
Start by grasping the current situation. Let's do a "Health Check" of your line with the Speed Test.
Internet Speed TestMeasure your internet connection speed (Ping, Download, Upload).
