Roku Not Working: Fix Buffering and Wi-Fi Drops Step by Step
A Roku that will not play shows or movies, keeps buffering or loses Wi-Fi usually needs one of three checks: whether the streaming service itself is down, whether the Roku has a good network connection, or a restart of the Roku and the router. Roku Support lists these steps for content that will not play, plays in poor quality or keeps starting and stopping, and the sections below follow its order. If an app still fails after that, updating or reinstalling it is the last app-level step.
The steps apply to Roku players, sticks and Roku TV models. Exact menu names can differ slightly between pages and software versions.
How do I tell whether the problem is Roku or the streaming service?
Try other titles in the same app: if they also fail, the streaming service may have an outage, and its website is the place to check. When one video will not play but other titles in the app work, the problem sits with that title or app and not with the whole Roku.
Roku also suggests playing something from a different app, for example The Roku Channel. If that plays, the Roku is working and the first app is the one to look at. For an app that needs a subscription, such as Netflix, confirm you are properly signed in or that the app is linked to your account. Some apps ask for the login from a cable or satellite account, and the app’s own customer support can help with that sign-in.
If you cannot open subscriber-only content such as original shows, movies or ad-free viewing, check your subscription status on the streaming service’s website. For a subscription bought through Roku Pay, Roku points to the subscriptions page of your Roku account. Another device with its own steps is covered in this site’s Apple TV playback troubleshooting guide, and if YouTube is the app that fails, see fixes for YouTube videos that will not load or play.
How do I check my Roku’s connection?
An unstable connection is a common cause of videos and apps that will not load. Roku Support says to check the connection when setup will not finish, shows and movies keep buffering or look choppy, apps will not open and you see a Not connected message, or network errors appear on screen. The test takes a minute:
- Press Home on the Roku remote.
- Select Settings, then Network, then Check connection.
- Wait for the test. A green check mark appears next to each item that passes, and a pop-up shows the results.
The latest result stays available under Settings > Network > About, which also shows signal strength. Roku describes the ratings this way:
- Excellent: strong, stable signal, with smooth streaming expected.
- Good: reliable for most streaming, though 4K or high-quality video might buffer once in a while.
- Fair: weak signal, with possible pauses or drops in video quality. Moving the Roku closer to the router or removing walls and obstacles helps.
- Poor: very weak signal, with frequent buffering or disconnects likely. Roku suggests restarting the Roku and router, moving them closer together or using a wired connection.
The test also reports download speed. Roku lists typical requirements of 3 Mbps for standard definition, 5 Mbps for HD and 25 Mbps or more for 4K Ultra HD. If the speed looks fine but video still stutters, other devices may be using too much bandwidth, and some apps, such as Netflix or Disney+, have their own speed minimums.
A red X means the Roku cannot reach your router or network. Go back to the Network menu, select Set up connection and connect again. If the Roku is connected to the router but has no internet, open a public website on a phone or computer. Roku says that if the site does not load, you likely have an outage at your internet service provider (ISP), and the ISP can confirm that.
How do I restart the Roku and the router?
A full restart of both devices fixes many connection problems, according to Roku. Start with the router: unplug it from power, wait, then plug it directly into a wall outlet. Roku Support adds that for a thorough restart you should unplug the Roku, the router and the modem, wait about 15 seconds, then plug in the modem first, the router second and the Roku last.
The waiting times differ between Roku pages: 10 seconds on the playback and restart pages, about 15 seconds on the Wi-Fi page and 30 seconds on the connection-check page. Roku’s playback page also mentions the router’s Reset button and tells you to contact your ISP if you need help with this step.
To restart the Roku itself, Roku Support describes a system restart as the least invasive reset, one that does not affect your settings:
- Press Home on the remote.
- Scroll down and select Settings, then System.
- Select Power. If there is no Power submenu, skip to the next step.
- Select System restart.
You can also unplug the Roku from power for at least 10 seconds and plug it back in. On a Roku TV, a system restart is not the same as pressing the power button on the remote or the TV, so use the power cord or the Settings menu.
How do I fix weak Wi-Fi or constant buffering?
If the signal rating is Poor or Fair, Roku points to placement and interference first. After any change, run Check connection again to see whether signal and speed improved.
- Move the Roku and the router closer together, with no walls, cabinets or large furniture between them, and keep both out of enclosed spaces.
- Point router antennas in different directions and put both devices higher up, such as on a shelf.
- Move a Roku stick away from the back of the TV, since TVs can block Wi-Fi. Roku says a free HDMI extender is available for this.
- Pause large downloads or streaming on phones, game consoles and other devices, or reduce the number of connected devices.
- Keep the router away from cordless phones, microwaves and baby monitors, which can weaken the signal.
- If the Roku shows a “low power” message or restarts at random, plug it into a wall outlet instead of the TV’s USB port.
If your router and Roku both support 5 GHz Wi-Fi, switch to that network. Roku calls it faster and less crowded than 2.4 GHz. Some Roku models cannot use certain 5 GHz DFS (Dynamic Frequency Selection) channels, which are 50 to 64 and 100 to 144. If the Roku does not see your 5 GHz network, try changing the router’s channel to 36 to 48 or 149 to 165, and contact your ISP if you need help. A free Wi-Fi analyzer app on a phone can show a less crowded channel to set by hand in the router.
A wired test also helps. If the Roku or a compatible adapter supports Ethernet, connect it to the router. If everything streams smoothly, the Wi-Fi setup is the problem. Roku also says a router older than five years may not deliver the speed or range needed, and that newer mesh or dual-band routers often fix persistent Wi-Fi problems. Checking the software at Settings > System > System update is on Roku’s list of advanced fixes too.
What if only one app will not load?
An app that will not open, crashes or shows a black screen may need an update. Press Home, highlight the app, press the Star button on the remote and select Check for Updates. When the update finishes, open the app again.
If that does not work, remove the app and add it again. Highlight the app on the Home screen, press Star to open the Options menu, select Remove app and confirm. Roku notes that an app cannot be removed while you have an active subscription billed through Roku.
What if the Roku is frozen or nothing helps?
For a frozen Roku, Roku suggests ruling out simple causes first. Put new matching batteries in the remote, or recharge a rechargeable remote. If the image is jerky and pixelated, stream video on a phone or laptop on the same network: if it also stutters there, the home network is the cause. A picture that freezes now and then can also come from the HDMI cable, so Roku suggests trying a different one, at least temporarily.
When several channels fail, a network connection reset can help. Go to Settings > System > Advanced system settings > Network connection reset > Reset connection, then set up your Wi-Fi again. The Roku restarts after the reset. As a last resort, Roku lists a factory reset under Settings > System > Advanced system settings > Factory reset. It erases all settings, and you must set up all your apps again.
Roku also suggests connecting the Roku to another TV or to a different Wi-Fi network, such as a phone hotspot. If it connects there, your home network setup is the issue, and Roku Support or your ISP can help check the connection.
Quick answers
Does a system restart erase my settings?
No. Roku calls the system restart the least invasive reset and says it does not affect your settings. A factory reset is different: it erases all settings.
How fast does my internet need to be for Roku?
Roku lists typical needs of 3 Mbps for standard definition, 5 Mbps for HD and 25 Mbps or more for 4K Ultra HD. Individual apps may set their own minimums, so check their requirements.
Should I use 5 GHz or 2.4 GHz Wi-Fi?
If both your router and Roku support 5 GHz, Roku says to switch to it because it is faster and less crowded than 2.4 GHz. If the Roku cannot see the 5 GHz network, a different router channel may help.
Checked against official sources in November 2026. Apps, menus and error codes change: check the official help page for the current steps.