You’re paying for blazing fast internet, yet Netflix keeps pausing to buffer every few minutes. This frustrating issue happens when something blocks the smooth flow of video data to your device, even though your internet speed should be more than enough.
Step-by-Step Fixes
Step 1: Force Close and Restart Netflix
Start with the quickest fix. On your device, completely close the Netflix app rather than just minimizing it. On smartphones, swipe up and flick Netflix away. On smart TVs, hold the home button and select “close app” or unplug the TV for 30 seconds. On computers, close all browser tabs running Netflix. This clears temporary glitches that often cause buffering on fast connections.
Step 2: Check Your Real-Time Speed
Your internet plan might promise 200 Mbps, but what matters is what Netflix actually receives right now. Visit fast.com on any device – Netflix built this tool specifically for streaming tests. You need at least 5 Mbps for HD and 25 Mbps for 4K content. If your speed looks good here but Netflix still buffers, the problem is likely with your home network setup.
Step 3: Switch to 5GHz WiFi or Use Ethernet
Most routers broadcast two networks: 2.4GHz and 5GHz. The 2.4GHz band gets crowded quickly, especially in apartments where dozens of networks overlap. Look for a network name ending in “5G” or “5GHz” in your WiFi settings. Better yet, connect your streaming device directly to the router with an ethernet cable. This step is ideal for gaming consoles, smart TVs, and streaming boxes that stay in one place.
Step 4: Lower Netflix Video Quality Temporarily
While you troubleshoot, reduce the strain on your connection. In Netflix settings, go to “Playback Settings” and switch from “Auto” or “High” to “Medium.” This isn’t a permanent solution, but it helps identify whether your network can handle any Netflix stream at all. This setting is best used in situations where multiple people share your connection.
Step 5: Update Your Device and Netflix App
Outdated software creates compatibility issues that manifest as buffering. On Roku, Apple TV, or Fire Stick, check for system updates in the settings menu. For the Netflix app itself, visit your device’s app store and look for pending updates. Smart TV users should check both TV firmware and app updates – Samsung and LG TVs often hide these in different menu sections.
Step 6: Change DNS Servers
Your internet provider’s DNS servers might be slow or overloaded. Switch to Google’s DNS (8.8.8.8 and 8.8.4.4) or Cloudflare’s (1.1.1.1). On Windows, find this in Network Settings > Change Adapter Options. On smart TVs and streaming devices, look in Network or Internet settings. This fix is particularly effective when buffering happens during peak evening hours.
Likely Causes
Cause #1: Network Congestion in Your Home
Even with gigabit internet, your home network can create bottlenecks. Security cameras, smart home devices, and computers running updates all compete for bandwidth. Check your router’s admin panel (usually at 192.168.1.1) to see connected devices.
To verify this cause, disconnect unnecessary devices temporarily. If Netflix immediately improves, you’ve found the culprit. The solution involves upgrading to a WiFi 6 router or setting up Quality of Service (QoS) rules that prioritize streaming traffic.
Cause #2: ISP Throttling or Routing Issues
Some internet providers slow down streaming services during busy hours, despite your fast connection. This practice peaked around 2018 but still happens in 2025. Netflix might buffer while YouTube works perfectly, indicating selective throttling.
Test this by using a VPN service temporarily. If Netflix suddenly works smoothly through VPN, your ISP is likely interfering. Long-term solutions include switching providers or filing a complaint with the FCC about net neutrality violations.
Cause #3: Overheating or Failing Hardware
Streaming devices and routers generate heat during extended use. When they overheat, performance drops dramatically. Touch your router and streaming device – if they feel hot, inadequate ventilation is causing thermal throttling.
Check for dust buildup in vents. Position devices in open areas with good airflow, not inside cabinets. Routers older than 3-4 years often develop this issue. This cause is most common with older Roku devices, first-generation Chromecasts, and routers placed in entertainment centers.
When to Call Expert Help
Contact professional support when basic troubleshooting fails to fix persistent buffering. If multiple streaming services buffer despite good speed tests, or if the issue affects multiple devices simultaneously, you likely have a complex network problem.
Call your ISP’s technical support if buffering started after a service change or during specific times daily. For smart TV issues persisting after updates, contact the manufacturer while your warranty remains valid. Professional help is essential when buffering accompanies frequent internet disconnections or unusual error codes.
Copy-Paste Prompt for AI Help
“My Netflix keeps buffering even though I have [your speed] Mbps internet. I’m using [your device type] connected via [WiFi/ethernet]. Speed tests show [test results] Mbps. The buffering happens [when it occurs – time of day, specific shows, etc.]. I’ve already tried [list what you’ve tried]. Other streaming services [do/don’t] have the same problem. My router is [router model] and I have [number] other devices connected. What specific troubleshooting steps should I try for my setup?”