How to fix VXDIAG Benz C6 Xentry Diagnosis 12.2020 Connect Device Error

When I open XDVCI Update V3.3 to run Xentry diagnosis VCI Update, it gave me error: connect device error: ping failed I have VXDIAG Benz C6 with Xentry Diagnosis 12 / 2020.

Look at this error screenshot:

Xentry-Diagnosis-12-2020-connect-device-error engineer gave the solution:

Connect your device to the car and the computer
Go to to download and install the latest version of vx manager 1.84 software
Install the “XDVCIUpdate-20210221.exe” file by downloading from the mega below: