Access Server: Troubleshooting steps for Subscription License Model

Description: In your OpenVPN Access Server, if activating a subscription license fails or you have one currently installed that stops working, you can follow this guide to troubleshoot these kinds of issues.

+ Before you begin, ensure you have the below tools installed on your Access Server server:

For Ubuntu/Debian:

apt update
apt -y install dnsutils
apt -y install curl
apt-get -y install telnet

For CentOS/RHEL:

yum update -y
sudo yum -y install curl
dnf install bind-utils
dnf install telnet

+ Then, you can run the below commands one by one to verify your issue:

ping -c4 8.8.8.8
ping -w 1 google.com
telnet asb.sts.openvpn.net 443
nslookup asb.sts.openvpn.net
curl -vvk https://asb.sts.openvpn.net
echo quit | openssl s_client -showcerts -connect asb.sts.openvpn.net:443 -servername asb.sts.openvpn.net | grep "OpenVPN Inc"

+ Also, check the status of your subscription from your server via "root" user privileges:

sudo su
cd /usr/local/openvpn_as/scripts/
./sacli SubscriptionStatus

This gives you an idea of what your issue is. Some commons issues may be:

+ No internet on your Linux Machine.

+ No DNS Resolution.

+ Any border device such as ISP, Router, Firewall, Proxy, or NAT Device blocking or redirecting the traffic to another side/path.

If you need help interpreting the results from the above commands, please collect the above info and submit a ticket.