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Roku Keeps Buffering? Try These Easy Solutions for Smooth Streaming

Roku Keeps Buffering? Try These Easy Solutions for Smooth Streaming

Your old TV started lagging a few months ago, so you recently decided to invest in a Roku to take advantage of its fast and smooth interface. Everything was working perfectly up until last week when your Roku started buffering too! 

It takes forever to open apps and any TV shows or movies you watch continuously lag. The Roku is relatively new, so you know this isn’t a result of wear and tear. 

Why is your Roku buffering? And how can you get it to run smoothly again? 

Keep reading to find out! 

Slow/Weak Internet Connection

slow wi-fi concept with a snail crawling towards black wi-fi router

If your Roku only buffers when streaming online content, then it’s most likely a result of a slow internet connection. Streaming requires high bandwidth, and videos will lag if your internet connection is too slow. This is the case when streaming on any device, including smartphones and computers. 

Wired Connection

Wired internet connections facilitated by an Ethernet cable always foster faster and more stable connections than wireless setups. Some of a network’s strength and stability tend to be lost when the signal is transmitted wirelessly. Using a wired connection will mitigate this problem. 

The Roku Ultra and Ultra LT are the only Roku models with built-in Ethernet ports. However, there is a way to use a wired internet connection on Roku models that do not natively support this function. 

Wireless Connection

Every Roku device supports a wireless internet connection via Wi-Fi. While Wi-Fi is slower and less stable than wired connections, it’s certainly more flexible since you don’t have to worry about having your router close enough to your TV to be connected to it. 

It also fosters a cleaner setup since there won’t be any additional cables cluttering your entertainment center. 


Lower Stream/Video Quality

Your home’s internet may be too slow to stream content in Full HD or 4K, resulting in buffering. So, it’s best to lower the video quality to ensure it plays smoothly. Higher resolutions also consume more data per hour than lower ones. 

To learn how much data a Roku uses, check out our article How Much Data Does a Roku Player Use (per Hour, Month)?

Check out the links below to learn how to adjust popular streaming platforms’ video quality: 

In addition to lowering the resolution, consider also lowering your Roku’s bitrate through its settings. 

Follow the steps below to adjust your Roku’s bitrate. 

Step 1: On your remote, press the Home key five times

Step 2: Then, press the Rewind key three times

Step 3: Hit the Fast Forward button two times

Step 4: Now, you should see the Bit Rate Override page on-screen. From here, select Manual Selection

Step 5: Choose the lowest bitrate from the list. 

Step 6: Then, play a video in the streaming app. If the video quality is too low for your tastes, increase the bitrate to the second or third lowest by following the same steps.

Watch the video below demonstrating how to lower your Roku’s bitrate. 

Roku Bandwidth Adjustment

Install a Wi-Fi Mesh System

If your router isn’t strong enough to provide a stable signal to your Roku and other devices, consider investing in a Wi-Fi mesh system, like the TP-Link Wi-Fi Mesh System 

This nifty system automatically switches to the fastest available signal to ensure your devices have access to the best possible connection and won’t buffer. 

You can learn how to set up a TP-Link Wi-Fi mesh system by watching the video below. If you have another mesh system brand, refer to its user manual for its specific setup instructions. 

How to Set up the TP-Link Deco M4 Mesh Wi-Fi System

Note: While the recommended Wi-Fi mesh system comes with three units, you may need more or fewer units depending on how big the area you want to cover is. 

Use an Ethernet Adapter

If you have a Roku Ultra or Ultra LT, you can plug an Ethernet cable directly into its Ethernet port before plugging the other end into your router. 

All other Rokus must be connected to an Ethernet port using an adapter  that connects to their micro USB port. You can also explore Roku’s list of tried and true Ethernet adapters on their official website

a Roku stick connected to router via Ethernet adapter

Check out Roku’s article on connecting devices to Ethernet for a comprehensive list of compatible devices, tried and true adapters, set-up instructions, and troubleshooting tips. 


Your Roku overheating is a result of the device operating at high temperatures for an extended period. You may notice your Roku overheating if you’ve been using it for several hours without giving it a break or if the device isn’t properly ventilated. 

Many devices, including Rokus, implement thermal throttling to help cool down the hardware and return it to an acceptable temperature. While efficient, this process also slows down the device’s processor, which leads to buffering. 

If your device has overheated, you may notice that your Roku takes longer to launch apps and settings menus. It may also take longer to start up.

You can also tell that your Roku has overheated if its LED status light is red.


HDMI Extender

Roku sticks are especially prone to overheating if they’re located behind your TV. This area receives minimal ventilation, increasing the risk of overheating.

Luckily, Roku will send an HDMI extender to you for free if you fill out this form

Once you’ve received your free extender, plug your Roku stick directly into its HDMI port. Then, plug the extender’s HDMI cable into your TV. Ensure your Roku is connected to power and you’re good to go! 

a Roku stick connected to computer via HDMI extender

Outdated Software

The app or channel you’re using may have some bugs that are preventing it from running smoothly. Most updates contain some bug fixes that may resolve this problem. 

It’s generally a good idea to keep your apps/channels updated anyway since this is the only way to gain access to the latest software patches and features. 


Update Your Roku

Step 1: Hit your Roku remote’s Home ? button.

Step 2: Go to the Settings in the right-hand menu. 

Step 3: Open System

Step 4: Head to System Update

Step 5: Click on Check Now. If there are any available updates, they will automatically install. In some cases, this process will cause your Roku to reboot. 

Watch the video below demonstrating how to update a Roku device. 

How To Update a Roku Player

Update the Channel

Step 1: Press your Roku remote’s Home ? button.

Step 2: Highlight the buffering app and hit the Asterix (✱) button. 

Step 3: Choose Check for Updates in the pop-up window. If the app has any pending updates, they will instantly install. Your Roku may also reboot.

Watch the video below demonstrating how to update a Roku channel. 

How To Update a Roku Channel (App)

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