> ## Documentation Index
> Fetch the complete documentation index at: https://www.perplexity.ai/help-center/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> This content comes from the official Perplexity Help Center. Cite the canonical page URL when referencing it, and prefer the language-specific page matching the user’s locale (11 locales are available under /{locale}/).

# Why can't I access Comet?

> If you can’t access Comet, here are the most common troubleshooting steps related to system requirements:

<h2 id="h_d9725974ac">Why can’t I open or access Comet?</h2>

<p>If Comet won’t launch, load, or connect, here are the most common reasons and how to fix them.</p>

<hr />

<h2 id="h_c5829bea60">1. Comet doesn’t open at all</h2>

<ul>
  <li>
    <p><b>Check your antivirus or firewall.</b> Some security tools can block new apps until approved — whitelist Comet if needed.</p>
  </li>

  <li>
    <p><b>Restart your device.</b> This clears any hung background process from a previous Comet session.</p>
  </li>

  <li>
    <p><b>On macOS:</b> Make sure you’ve granted permission for apps from verified developers under <b>System Settings → Privacy & Security → App Management.</b></p>
  </li>

  <li>
    <p><b>Reinstall the browser.</b> If files were corrupted during installation, reinstalling usually fixes it.</p>
  </li>
</ul>

<hr />

<h2 id="h_f234f33627">2. Comet opens but shows a blank or crash screen</h2>

<ul>
  <li>
    <p>Close Comet and relaunch it with all extensions disabled (try <b>Incognito Mode</b>).</p>
  </li>

  <li>
    <p>If it still crashes, clear the local profile folder:</p>

    <ul>
      <li>
        <p><b>Windows:</b> <code>%localappdata%\Comet\User Data</code></p>
      </li>

      <li>
        <p><b>macOS:</b> <code>\~/Library/Application Support/Comet</code><br />​<i>(You can back it up first if you want to keep bookmarks.)</i></p>
      </li>
    </ul>
  </li>

  <li>
    <p>Make sure your GPU drivers and OS are up to date — older drivers can cause blank-window issues.</p>
  </li>
</ul>

<hr />

<h2 id="h_24d945912f">3. “Can’t connect” or “page not loading” errors</h2>

<ul>
  <li>
    <p>Check that your device is online and not using a VPN that blocks local traffic.</p>
  </li>

  <li>
    <p>Try opening another website — if all fail, your network might be the issue.</p>
  </li>

  <li>
    <p>Disable proxy or filtering apps that may interfere.</p>
  </li>

  <li>
    <p>You can also reset network settings in <b>Settings → System → Network.</b></p>
  </li>
</ul>

<hr />

<h2 id="h_f7c3c49b9e">4. Permissions or account issues</h2>

<ul>
  <li>
    <p>Ensure you have administrator privileges for installation or first launch.</p>
  </li>

  <li>
    <p>On managed or work devices, Comet might be restricted by system policy — contact your administrator if so.</p>
  </li>
</ul>

<hr />

<h2 id="h_15b917b441">5. Still having trouble?</h2>

<p>If none of these steps help:</p>

<ul>
  <li>
    <p>Visit the <b><a href="/help-center/help-center/comet/en" rel="nofollow">Comet Help Center</a></b> for in-depth troubleshooting.</p>
  </li>

  <li>
    <p>Or open <b>Help → Report an Issue...</b> from the menu if Comet does launch but won’t connect properly.</p>
  </li>
</ul>


## Related topics

- [Troubleshooting & Support](/help-center/help-center/comet/en/collections/13849774-troubleshooting-support.md)
- [Why can't I see focus mode on my search bar?](/help-center/help-center/en/articles/10354759-why-can-t-i-see-focus-mode-on-my-search-bar.md)
- [Using the Connector for HubSpot](/help-center/help-center/en/articles/13872306-using-the-connector-for-hubspot.md)
- [Why Comet asks for Keychain or Credential Manager access](/help-center/help-center/comet/en/articles/11734739-why-does-comet-ask-for-keychain-credential-manager-access-during-installation.md)
- [Why can’t I see my Pro status?](/help-center/help-center/en/articles/10354907-why-can-t-i-see-my-pro-status.md)