# Browser Playback. Troubleshooting

#### The screen won't enter full-screen mode

Browser-based playback relies on full-screen mode for proper display. If the browser doesn't enter full-screen:

* Click the full-screen icon in the browser manually, or press **F11** (Windows) or **Control+Command+F** (Mac).
* Check if a browser extension is blocking full-screen mode. Disable extensions temporarily to test.
* Make sure you clicked inside the browser window — some browsers require user interaction before allowing full-screen.

#### Content doesn't start automatically

Browsers restrict autoplay to prevent unwanted video and audio. If content doesn't play:

* Click anywhere on the screen to start playback. This interaction satisfies the browser's autoplay policy.
* Check if autoplay is blocked in your browser settings. In Chrome, go to **Settings → Privacy and security → Site Settings → Additional content settings → Sound** and ensure sound is allowed for play.buzzblender.com.
* If your playlist includes videos with sound, unmute the browser tab or click the play button.

#### Content stops or disconnects

If the browser screen loses connection or stops playing:

* **Check your internet connection:** Browser playback requires a stable connection. If the network drops, the screen will stop.
* **Refresh the page:** Press **F5** or **Ctrl+R** (Windows) / **Command+R** (Mac) to reload and reconnect.
* **Prevent sleep mode:** The device running the browser must stay awake. On laptops, adjust power settings to prevent sleep when plugged in. On tablets, disable auto-lock or keep the device charging.
* **Disable screensavers:** Turn off screensavers and sleep timers on the device displaying content.

#### Video or images don't display correctly

If content appears distorted or doesn't fill the screen:

* Check your display mode settings in the Buzzblender dashboard. Display modes like **fit**, **stretch**, and **crop** control how content scales to the screen.
* Make sure the browser window is in full-screen mode — content may not scale correctly in a resized window.
* Try a different browser. Chrome, Firefox, Edge, and Safari all support modern video formats, but performance can vary.

#### The browser is slow or unresponsive

Browser playback uses device resources to render content. To improve performance:

* Close other tabs and applications to free up memory and CPU.
* Use a device with sufficient processing power for video playback.
* Reduce playlist complexity if you're running multiple videos or animations simultaneously.

{% hint style="info" %}
Browser-based playback is designed for temporary displays, testing, or secondary screens. For permanent digital signage installations, native apps on LG webOS, Samsung Tizen, or Android TV provide better reliability and don't require a dedicated computer.
{% endhint %}


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