Access Server: DCO Not Working After Upgrading to 3.2.0

Overview

Starting with Access Server 3.2.0, Data Channel Offload (DCO) requires a new kernel module package.

If you upgrade Access Server using the official installation script, the required DCO package installs automatically.

If you upgrade Access Server using a package manager such as apt, yum, or dnf, Access Server may upgrade successfully, but the required DCO package may not install automatically. In this case, DCO doesn't function correctly, and you may see the following message:

ovpn-dco availability: False, Kernel module not loaded

Solution

Install the required DCO package for your operating system.

Option 1 (recommended):

Run install script to install missed DCO packages automatically:

bash <(curl -fsS https://packages.openvpn.net/as/install.sh) --yes

Option2 (manual package installation):

On Ubuntu and Debian and clones:

apt update && apt -y install ovpn-dkms

On Red Hat Enterprise Linux and clones:

yum -y install kmod-ovpn

Need help?

If the issue persists, submit a support ticket.