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Player initialization failed

Notice

This document is a machine-translated draft and is currently undergoing review. Some content may be inaccurate or differ from the original Korean version. For the most precise information, refer to the Korean documentation.

  • Error message: "Player initialization failed. Please refresh this page."
  • Summary: Player initialization failure due to browser updates and other causes

Symptoms​

The video does not play and the error message above is displayed. This may occur suddenly after a Chrome or Edge browser update.

Solutions by cause​

Error due to pna policy in Chrome/Edge 141 or later​

Starting with Chrome/Edge version 141 (as of November 2025), the Private Network Access (PNA) policy is enforced, and a permission request popup appears when the browser attempts to access devices on a private network. If this popup is dismissed or goes unnoticed, an initialization error may occur.

Browser settings and dns issues​

Player initialization may fail due to abnormal browser settings or DNS server issues. Follow these steps in order:

  1. Enter chrome://settings/reset in the Chrome address bar and click [Reset settings to their original defaults] to reset Chrome browser settings.
  2. If a proxy is enabled, disable it.
  3. If the DNS server is set to a private server, change it to Google DNS (8.8.8.8).
  4. Reboot your PC after applying the changes.

Insufficient PC resources​

If you use your PC for an extended period (more than a day) without rebooting, system resources such as memory may become depleted, causing player initialization to fail. Reboot your PC and check whether it works correctly.

Corrupted or outdated player installation file​

The same error message may occur if the player installation file is corrupted or not the latest version. Completely uninstall the existing Kollus Player app and reinstall the latest version.

Conflict with antivirus program​

If an antivirus program such as Avast incorrectly identifies Kollus Player as malicious software and blocks it, an initialization error may occur. Temporarily disable or remove the antivirus program and try again.

Windows firewall settings​

Player communication may be blocked due to abnormal Windows Firewall settings. Go to [Control Panel] > [Windows Firewall] > [Restore defaults] and try again in the Edge browser.

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