Twitch Stream Keeps Buffering — What It Means & How to Fix It

What Does This Error Mean?

Twitch buffering means your connection cannot download the stream data fast enough to play it smoothly. The video player pauses and loads because incoming data is arriving slower than playback requires. This is usually caused by a slow or congested internet connection, high stream quality settings, or Wi-Fi interference. Lowering the stream quality and switching from Wi-Fi to a wired connection resolves most buffering problems.

Affected Models

Twitch Web (Chrome)
Twitch Web (Firefox)
Twitch Web (Safari)
Twitch Android App
Twitch iOS App

Common Causes

Your internet connection speed is too slow to sustain the selected stream quality (1080p60 requires 8+ Mbps)
Your Wi-Fi signal is weak or experiencing interference from other devices or networks
Multiple devices on your network are competing for bandwidth simultaneously
Twitch's CDN servers are overloaded during peak hours (evenings and weekends)
Your browser or Twitch app has accumulated cache data that is causing playback inefficiency

How to Fix It

Lower the stream quality. Click the gear icon below the player > Quality and select 720p, 480p, or 360p. Lower quality requires less bandwidth and buffers far less.

1080p60 streams require 8+ Mbps of sustained download speed. If your connection tests below that, you cannot watch at 1080p without buffering.
Run a speed test at speedtest.net. Compare your result to the quality you are trying to watch. 480p needs approximately 2 Mbps; 720p needs 4 Mbps; 1080p60 needs 8+ Mbps.

If your speed is fine but you still buffer, the issue may be latency (ping) rather than bandwidth, or congestion between you and Twitch's servers.
Switch from Wi-Fi to a wired Ethernet connection if possible. Wi-Fi is susceptible to interference and packet loss that causes stuttering and buffering even on fast connections.

Even a short Ethernet cable from your router to your computer makes a significant difference for streaming quality.
Close other tabs, apps, and devices that are using the internet. Streaming video on multiple devices, video calls, and large downloads all compete for your available bandwidth.

Streaming services, gaming, and video calls are especially bandwidth-intensive. Pause them temporarily while watching Twitch.
Clear your browser cache. In Chrome: Settings > Privacy and Security > Clear Browsing Data. Cached data from previous sessions can slow down the Twitch player.

After clearing cache you will need to log back in to Twitch.
Restart your modem and router. Unplug both devices from power, wait 30 seconds, then plug the modem in first and wait for it to connect before plugging in the router.

Routers accumulate connection tables and can develop routing inefficiencies over days of uptime. A restart often improves streaming performance.

When to Call a Professional

Twitch buffering is almost always a DIY fix involving your network or stream quality settings. No professional service is needed. If your internet consistently tests below 5 Mbps on speedtest.net, contact your ISP to discuss a faster plan or troubleshoot line quality issues. If buffering only occurs during peak hours, the issue may be Twitch's servers — check twitchstatus.com.

Frequently Asked Questions

Why does Twitch buffer more in the evening?

Evening hours (7pm–11pm) are peak internet usage times when millions of people stream video simultaneously. Your ISP's network becomes congested, reducing your effective speed even if your plan has high bandwidth. Twitch's CDN servers also experience higher load during these hours. This is normal — try lowering quality to 480p during peak hours for smoother playback.

Does Twitch's low-latency mode cause more buffering?

Yes — Low Latency mode reduces the buffer size to minimize delay between the stream and your viewer experience. With a smaller buffer there is less 'runway' to absorb speed fluctuations, so even small network hiccups cause visible pauses. If you are buffering, go to the player settings and switch from Low Latency to Normal latency mode.

Why does YouTube work fine but Twitch keeps buffering?

YouTube and Twitch use different video delivery technologies and CDN networks. YouTube buffers content ahead of time (pre-caches several minutes), making it resilient to brief speed drops. Twitch is a live stream — it cannot pre-cache because the content does not exist yet. A connection that is good enough for recorded YouTube video may still struggle with Twitch's live, real-time stream.