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This page documents known issues and workarounds when using NEAT.

Ad-blockers causing NeatSession initialization errors

When initializing a NeatSession, you may encounter the following error if you have ad-blockers enabled:
ProtocolError: ('Connection aborted.', HTTPException('Failed to fetch'))
MaxRetryError: HTTPSConnectionPool(host='api-eu.mixpanel.com', port=443): Max retries exceeded with url: /engage (Caused by ProtocolError('Connection aborted.', HTTPException('Failed to fetch')))
Cause: This error occurs because NEAT attempts to send anonymous usage analytics to Mixpanel, but ad-blockers prevent the connection.Solution: Disable your ad-blockers or add mixpanel.com to the allowlist in your ad-blocker settings.

Further reading

Last modified on February 27, 2026