Unitymedia ConnectBox with Raspberry Pi 4B

Connecting a Raspberry Pi 4B computer to the ConnectBox (WLAN router) from Unitymedia//UPC may not work properly.

If you connect the Raspberry Pi directly via LAN cable to the ConnectBox, packet losses might occur. Probably an issue with the odd ConnectBox hardware.

The solution is relatively simple. If you hang a switch between the ConnectBox and the Raspberry Pi, the connection works without problems.

More information on the issue:

Install VirtualBox Extension Pack Headless

To install the VirtualBox Extensions on a server without graphical interface, just download the extension pack from the website https://www.virtualbox.org/wiki/Downloads and install it using the „VBoxManage“ command.

Download and install Extension Pack

$ wget https://download.virtualbox.org/virtualbox/5.2.18/Oracle_VM_VirtualBox_Extension_Pack-5.2.18.vbox-extpack
$ VBoxManage extpack install Oracle_VM_VirtualBox_Extension_Pack-5.2.18.vbox-extpack

List installed Extension Packs

$ VBoxManage list extpacks
Extension Packs: 1
Pack no. 0: Oracle VM VirtualBox Extension Pack
Version: 5.2.12
Revision: 122591
Edition:
Description: USB 2.0 and USB 3.0 Host Controller, Host Webcam, VirtualBox RDP, PXE ROM, Disk Encryption, NVMe.
VRDE Module: VBoxVRDP
Usable: true
Why unusable:

Uninstall Extension Pack

$ VBoxManage extpack uninstall "Oracle Virtual Machine VirtualBox Extension Pack"
0%…10%…20%…30%…40%…50%…60%…70%…80%…90%…100%
Successfully uninstalled "Oracle Virtual Machine VirtualBox Extension Pack".