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Some antivirus suites (Bitdefender, McAfee, Kaspersky) use SSL scanning or encrypted web filtering that interferes with Parsec’s handshake.
Temporary test:
If Error 14004 disappears, add the following exceptions to your antivirus: parsec error 14004
Rarely, Error 14004 is caused by a bug in Parsec’s own server infrastructure or a specific version release. Before spending hours debugging, check: If Error 14004 disappears, add the following exceptions
If dozens of users report the same error after a new update, downgrade to a previous version of Parsec until the developer releases a patch. If dozens of users report the same error
Parsec error 14004 is an IP-comms and authentication failure reported by users of the Parsec remote-desktop/game-streaming client and similar SDKs. This publication defines the error, catalogs likely causes, shows how to reproduce and diagnose it, provides repair and mitigation steps for different environments (end user, host, developer), presents logging and telemetry best practices, and recommends long-term fixes and monitoring. Intended audience: IT support, SREs, developers integrating Parsec, and technical writers.