Communication Failure. Communication with Bitdefender App Service failed to be initiated

Communication Failure. Communication with Bitdefender App Service failed to be initiated

Reported Issue: Some users have encountered an error that prevents the Bitdefender interface from launching properly: “Communication failure. Communication with Bitdefender App Service failed to be initiated.” Additionally, attempts to reinstall Bitdefender result in the installation process stalling at “Preparing Bitdefender Security” without progressing further.

Root cause: This issue is attributed to certain certificates, especially DigiCert Trusted G4, that should be installed before enabling the Bitdefender protection. The absence or misconfiguration of this certificate disrupts the communication between the Bitdefender application and its services, causing the “Communication failure” error.

Resolution: As this issue has been reported to Microsoft, a permanent fix is anticipated in future updates. In the meantime, users can take the following steps to address the problem:
 
Step 1: Enable Automatic Root Certificates Update
Log in to your computer with a Windows administrator account, then:
1. Click on the Start menu ( ⊞ ), type gpedit.msc and press Enter on your keyboard.
gpedit.msc
2. If Windows prompts you to allow the action, click “Yes” / “Continue” to proceed.
 
3. The Local Group Policy Editor window will appear. In the Computer Configuration section, double-click on Administrative Templates.
Administrative Templates
 
4. After expanding the Administrative Templates entry, double-click on System.
System
 
5. Within System, scroll down until you locate and double-click on Internet Communication Management.
Internet Communication Management
 
6. Double-click Internet Communication settings, then, on the right side of the window double-click the item Turn off Automatic Root Certificates Update.
Internet Communication settings
 
5. Select Disabled and click OK to apply the changes.
Disabled
6. After making the changes, close the Local Group Policy Editor.

    • Related Articles

    • SIEM Intergration with Bitdefender GravityZone

      Requirements Access to Bitdefender GravityZone Console. Ubuntu 24.04 LTS server with the following hardware configuration: Must be on the same network as the SIEM (On-Premises) or able to communicate with SIEM (Cloud). 2 CPU, 4 GB RAM, 80 GB HDD. ...

    • Check Bitdefender GravityZone Endpoint's Communication Server Address

      Hello Team, Follow the steps below to check the Bitdefender GravityZone Endpoint's Communication Server Address (EPAG): Run CMD as Administrator Navigate to the EPAG folder by typing the following command: cd C:\Program Files\Bitdefender\Endpoint ...

    • BitDefender GravityZone Ports communication status tool.

      Hello Team, The tool Check-BitdefenderPorts-WithRelay.exe is designed to automatically verify the status of all required Bitdefender GravityZone ports for both relay and non-relay machines. It is a lightweight executable utility that checks all ...

    • System Requirements for All Bitdefender Products

      System Requirements for All Bitdefender Applications and Services Welcome to the Bitdefender System Requirements page. Here, you will find the system requirements for all Bitdefender consumer applications and services to help you determine the ...

    • Steps to Manage Bitdefender Central Account

      Bitdefender Central: Your Easy How-To Guide In this article, we’re going to cover all the basics to get you acquainted with Bitdefender Central. What is Bitdefender Central? Bitdefender Central is an online platform that serves as your user account. ...