The most common causes of this error include incorrect date and time settings, corrupted or incomplete installation files, security software blocking critical EA services, or a network configuration that uses an unsupported congestion control protocol. These issues disrupt the connection between the EA App and EA servers, preventing background services from working correctly and leading to the EC:104 error. This comprehensive troubleshooting guide will help you resolve the EC:104 error and restore normal function to the EA App.
1. Syncing the System Clock
Ensuring your system clock is accurate is crucial because the EA App uses your device’s date and time for secure communication with EA servers especially during login, which relies on time-sensitive security tokens. If your clock is not synchronized, even by a small margin, these tokens may be deemed invalid, which would cause the EC:104 error.
2. Using the Installer’s Repair Feature
If the EA App’s files have become corrupted, are out of date, or the installation was interrupted previously, using the app’s built-in repair feature can quickly restore its functionality. This process checks for missing or damaged files, downloads the latest components, and repairs the installation so the app can run smoothly.
3. Whitelist EA App in Antivirus
Antivirus programs like ESET, Windows Defender, or Norton can sometimes incorrectly identify EA App files as potential threats, blocking network requests or authentication processes. This interruption can cause the EC:104 error, even if your computer otherwise appears secure. By adding the EA App and its components to your antivirus and firewall whitelist, you make sure these essential services are not blocked, allowing the EA App to communicate freely with EA servers. Note: If you are using third-party antivirus software, please refer to its support documentation for instructions on how to whitelist or unblock specific applications.
4. Switch Congestion Control Protocol (Community Suggested-Fix)
Some users have noted that specific network congestion control protocols, such as BBR2, may cause connectivity problems with the EA App. Although this is not an officially confirmed issue from EA, switching to a standard protocol such as Cubic (the Windows default) or Compound TCP has been shown to restore stable communication with EA servers for many users. Switching to a supported protocol like Cubic or CICP can greatly improve how reliably the EA App communicates with its servers.










