> ## 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?

> Troubleshoot Comet access by checking operating-system requirements, account eligibility, installation issues, and common error messages.

## Why can’t I open or access Comet?

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

***

## 1. Comet doesn’t open at all

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

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

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

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

***

## 2. Comet opens but shows a blank or crash screen

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

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

    <ul>
      <li>
        **Windows:** `%localappdata%\Comet\User Data`
      </li>

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

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

***

## 3. “Can’t connect” or “page not loading” errors

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

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

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

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

***

## 4. Permissions or account issues

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

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

***

## 5. Still having trouble?

If none of these steps help:

<ul>
  <li>
    Visit the **[Comet Help Center](https://www.perplexity.ai/help-center/help-center/comet/en.md)** for in-depth troubleshooting.
  </li>

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


## Related topics

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