Free tools Windows power users keep installed
One-click scans. No signup required.
Start by checking how widely the problem occurs: try another title, then another supported device on the same network. If only one device fails, focus on its app, software, or compatibility; if several devices struggle, check the connection, Wi-Fi conditions, or home network. Buffering alone does not identify the cause.
1. Find out whether the problem is a title, device, service, or network
Before changing settings, narrow the scope. Try a different show or film on the same service, then test that service on another supported device connected to the same network. HBO Max recommends testing another device to help distinguish a device problem from a network problem. HBO Max’s buffering guidance and Netflix’s troubleshooting steps also treat connection and device issues as possible causes.
As an Amazon Associate I earn from qualifying purchases.
- Only one title fails: Try another title. One unsuccessful playback attempt does not, by itself, establish a service-wide outage.
- Only one service fails: Check that service’s current help page and the displayed error code; the problem may be specific to the app or title rather than the whole connection.
- Only one device fails: Prioritize that device’s app, operating-system updates, and compatibility.
- Several devices or services struggle: Investigate the shared network, Wi-Fi signal, congestion, or connection to the service.
2. Check the connection on the device that is buffering
Run a speed test on the affected streaming device if possible, or on another device using the same network. A speed test is a snapshot: it may not reveal brief drops, wireless interference, or congestion that occurs during playback.
For HBO Max, its official troubleshooting page says HD streaming requires a minimum download speed of 5 Mbps and recommends 50+ Mbps for its best 4K streaming experience. These are HBO Max’s service recommendations, not guarantees that playback will be uninterrupted or universal thresholds for Netflix and Disney+. Disney+ identifies a slow or unstable connection as a possible cause but the cited guidance does not give a numeric minimum. See HBO Max’s buffering guidance. See Disney+’s streaming-issues guidance.
#1 Best Overall
- HD streaming made simple: With America’s number 1 TV streaming platform,* exploring popular apps—plus tons of free movies, shows, and live TV—is as easy as it is fun. *Based on hours streamed—Hypothesis Group
- Compact without compromises: The sleek design of Roku Streaming Stick won’t block neighboring HDMI ports, and it even powers from your TV alone, plugging into the back and staying out of sight. No wall outlet, no extra cords, no clutter.
- No more juggling remotes: Power up your TV, adjust the volume, and control your Roku device with one remote. Use your voice to quickly search, play entertainment, and more.
- Shows on the go: Take your TV to-go when traveling—without needing to log into someone else’s device.
- TV, simplified: With setup that only takes minutes, a simple-to-navigate Home Screen, and an uncluttered remote control that does all you need—Roku makes it easier to watch the TV you love.
If you are using public Wi-Fi at a hotel, café, or school, Netflix advises checking whether video services are blocked on that network; do not try to bypass an organization’s restrictions. Mobile-hotspot, cellular, and satellite connections may also be too slow or unstable for playback, so use Netflix’s connection guidance for those situations.
3. Restart the app and device, then check updates
- Fully close the streaming app and open it again.
- Restart the TV, console, phone, tablet, or streaming device.
- Check for updates to both the streaming app and the device’s operating system.
- Confirm the device is supported by the service. Disney+ lists compatibility and outdated software among possible causes; its guidance is at Disney+ streaming issues.
If the problem is limited to one device, follow the official instructions for its specific platform rather than applying a generic reset. HBO Max recommends reinstalling its app when buffering is isolated to a phone or tablet, and provides platform-specific steps for some TVs. Reinstalling may require signing in again; check the platform instructions before clearing app data or resetting a device. HBO Max buffering and device steps
Rank #2
- Ultra-speedy streaming: Roku Ultra is 30% faster than any other Roku player, delivering a lightning-fast interface and apps that launch in a snap.
- Cinematic streaming: This TV streaming device brings the movie theater to your living room with spectacular 4K, HDR10+, and Dolby Vision picture alongside immersive Dolby Atmos audio.
- The ultimate Roku remote: The rechargeable Roku Voice Remote Pro offers backlit buttons, hands-free voice controls, and a lost remote finder.
- No more fumbling in the dark: See what you’re pressing with backlit buttons.
- Say goodbye to batteries: Keep your remote powered for months on a single charge.
4. Restart the modem and router if multiple devices are affected
If the issue persists across devices, restart the network equipment according to its manufacturer’s instructions. Netflix’s cited procedure is to unplug the modem and, if separate, the router for 30 seconds, reconnect them, and wait for the connection to return. HBO Max also specifies a 30-second power interruption in its device troubleshooting steps. Netflix’s troubleshooting page and HBO Max’s buffering page
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
Once the network is back, retry playback. Temporarily pause downloads, game updates, video calls, or other high-bandwidth activity to see whether competing traffic is affecting playback.
Rank #3
- 4K streaming made simple:With America’s number 1 TV streaming platform,* exploring popular apps—plus tons of free movies, shows, and live TV—is as easy as it is fun. *Based on hours streamed—Hypothesis Group
- 4K picture quality: With Roku Streaming Stick Plus, watch your favorites with brilliant 4K picture and vivid HDR color.
- Compact without compromises: Our sleek design won’t block neighboring HDMI ports, and it even powers from your TV alone, plugging into the back and staying out of sight. No wall outlet, no extra cords, no clutter.
- No more juggling remotes: Power up your TV, adjust the volume, and control your Roku device with one remote. Use your voice to quickly search, play entertainment, and more.
- Shows on the go: Take your TV to-go when traveling—without needing to log into someone else’s device.
5. Improve Wi-Fi or make a wired test
- Move the streaming device closer to the router where practical.
- Place the router in an open, elevated location rather than on the floor, and away from appliances or other wireless devices that may interfere.
- If both the router and streaming device have Ethernet ports, connect them temporarily by cable to test whether Wi-Fi is the weak link. This is an optional diagnostic, not a guaranteed fix or a necessary purchase for every buffering problem.
These placement and connection suggestions are included in Netflix’s network troubleshooting guidance and HBO Max’s buffering steps.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.6. Contact the right support with useful details
If several devices still have connection problems after restarting the network, contact your internet provider. Netflix says an ISP can check for local outages, modem or router problems, and incorrect network settings. Tell the ISP whether one device or several are affected and whether each is using Wi-Fi or Ethernet. Netflix troubleshooting guidance
Rank #4
- Stunning 4K and Dolby Vision streaming made simple: With America’s number 1 TV streaming platform,* exploring popular apps—plus tons of free movies, shows, and live TV—is as easy as it is fun. *Based on hours streamed—Hypothesis Group
- Breathtaking picture quality: Stunningly sharp 4K picture brings out rich detail in your entertainment with four times the resolution of HD. Watch as colors pop off your screen and enjoy lifelike clarity with Dolby Vision and HDR10+.
- Seamless streaming for any room: With Roku Streaming Stick 4K, watch your favorite entertainment on any TV in the house, even in rooms farther from your router thanks to the long-range Wi-Fi receiver.
- Shows on the go: Take your TV to-go when traveling—without needing to log into someone else’s device.
- Compact without compromises: Our sleek design won’t block neighboring HDMI ports, so you can switch from streaming to gaming with ease. Plus, it’s designed to stay hidden behind your TV, keeping wires neatly out of sight
If only one service or device continues to fail, contact that streaming service using its current help page. Have the exact on-screen error code, device model, and app/device software version available. The official pages for Netflix, HBO Max, and Disney+ provide service-specific troubleshooting; use the code and device options shown there for the current instructions.
Quick Recap
Best Value
- Streaming made easy: Roku Express lets you stream free, live and premium TV over the Internet—right to your TV. It’s perfect for new users, secondary TVs and easy gifting—but powerful enough for seasoned pros
- Quick and easy setup: Just plug it into your TV with the included High Speed HDMI Cable and connect to the internet to get started
- Tons of power, tons of fun: Compact and power-packed, you’ll stream your favorites with ease; from movies and series on Apple TV, Prime Video, Netflix, The Roku Channel, HBO, Showtime and Google Play to cable alternatives like Hulu with Live TV and PlayStation Vue, enjoy the most talked about TV across free and paid channels
- Low cost, no extra fees: For under $30, Roku Express streaming device includes a High Speed HDMI Cable—and there’s no monthly equipment fee; with access to free TV on hundreds of channels, there’s plenty to stream without spending extra
- Simple remote: Incredibly easy to use, this remote features shortcut buttons to popular streaming channels
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
