Ensure your DNS isn't blocking the 0001 instance of the McAfee update cloud.
Always stick to the official Trellix/McAfee HTTP or FTP repositories rather than seeking "extra quality" third-party mirrors. mssplusmcafeecom 0001 hosts extra quality
If you are experiencing issues with host connectivity in a McAfee/Trellix environment: Ensure your DNS isn't blocking the 0001 instance
Usually denotes a specific instance, tenant ID, or a primary server node in a load-balanced cluster. mssplusmcafeecom 0001 hosts extra quality