How do I deal with network issues?

If you encounter SSL or network errors, such as wandb: Network error (ConnectionError), entering retry loop, use the following solutions:

1. Upgrade the SSL certificate. On an Ubuntu server, run update-ca-certificates. A valid SSL certificate is essential for syncing training logs to mitigate security risks.
2. If the network connection is unstable, operate in offline mode by setting the optional environment variable WANDB_MODE to offline, and sync files later from a device with Internet access.
3. Consider using W&B Private Hosting, which runs locally and avoids syncing to cloud servers.

For the SSL CERTIFICATE_VERIFY_FAILED error, this issue might stem from a company firewall. Configure local CAs and execute:

export REQUESTS_CA_BUNDLE=/etc/ssl/certs/ca-certificates.crt