Replace the client's communication file ( SyLink.xml ) using the Communication Update Package Deployment tool within SEPM to restore the secure connection. Corrupted Client Installations
Select the .
The management console must always be upgraded before deploying new client software to your endpoints.
Failure to prepare is preparing for a failed upgrade. Complete these steps before touching your SEPM. symantec endpoint protection upgrade 14.2 to 14.3
: Do not perform third-party installations (like OS updates) simultaneously with the SEP upgrade. Broadcom TechDocs Phase 2: Upgrading the Management Server (SEPM) The SEPM must always be upgraded before the clients. Stop Services : Manually stop the Symantec Endpoint Protection Manager API Service Web Server services on all management servers in your site. Run Installer : Run the 14.3 setup.exe as an Administrator. Upgrade Wizard
Ensure your Microsoft SQL Server version is compatible. Version 14.3 RU5 and later may require specific configurations for encrypted communication.
For environments utilizing Microsoft Endpoint Configuration Manager (SCCM) or Microsoft Intune, export the client installer as a single .exe or .msi file from SEPM. Package it as an enterprise application using the silent switch configuration parameters: Setup.exe /s /v"/qn /norestart" Use code with caution. 5. Post-Upgrade Verification and Troubleshooting Verification Steps Replace the client's communication file ( SyLink
Export the .msi package for deployment via SCCM, Intune, or Group Policy Objects (GPO). Post-Upgrade Verification
Review the installation folder path (it will default to your existing 14.2 path) and click . Click Install to initiate the file copying process. Step 3: Complete the Management Server Configuration Wizard
Management software detects the existing 14.2 installation automatically. Click to proceed with an upgrade. Accept the license agreement. Failure to prepare is preparing for a failed upgrade
Ensure that client machines are successfully communicating with the SEPM and receiving updated security definitions.
Once file extraction completes, the Upgrade Wizard automatically launches the Configuration Wizard.