> ## Documentation Index
> Fetch the complete documentation index at: https://atmos.oxygen.wiki/llms.txt
> Use this file to discover all available pages before exploring further.

# Troubleshooting

> Resolve common browser profile creation, launch, import, and extension issues

Use this page when a browser profile cannot be created, launched, imported, or used as expected.

## No fingerprint is available

Fingerprint generation can fail when no matching fingerprint exists for the selected browser version, platform, architecture, and GPU renderer.

Try the retry option without GPU renderer matching if the UI offers it.

## Proxy check fails

Check that:

* host and port are correct
* username and password are correct
* the proxy server is online
* your current network can reach the proxy
* the proxy supports HTTP or SOCKS5

If a proxy value has no protocol, Oxygen Atmos attempts to detect whether it works as HTTP or SOCKS5 during import.

## WebRTC, QUIC, or HTTP/3 does not work

The configured proxy may not support UDP. With **Block unproxied UDP**, Oxygen Atmos blocks UDP that it cannot send through the proxy. This prevents a direct connection from exposing the device's real IP address.

Check that:

* the proxy provider supports UDP;
* the proxy credentials and endpoint are correct;
* your network can reach the proxy's UDP relay;
* the profile is using the intended proxy.

The same proxy can continue to carry TCP traffic when UDP is unavailable.

## Wallet cannot be linked

The main wallet must:

* exist in Oxygen Atmos
* have a private key
* not already be used as the main wallet in another profile

Read-only wallets cannot be used as main browser wallets.

## Cookies do not appear

Imported cookies are applied during the next profile launch. If the profile was already running, close and relaunch it.

Also verify that cookie domain, path, expiry, and secure attributes match the website.

## X.com or Discord token does not apply

X.com tokens are imported as an `auth_token` cookie for `.x.com`.

Discord tokens are imported into local storage for:

```text theme={null}
https://discord.com/
```

If the token was added while the profile was already running, close and relaunch the profile.

## Extension does not load

Check that:

* the extension is enabled
* it is global or shares a tag with the profile
* the profile was relaunched after extension changes
* the extension package is valid

Extension loading is calculated when the [Oxidium](/browser-profiles/oxidium) profile launches.