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The license validation always fails
Posted: Wed Nov 26, 2025 9:13 am
by Shish1977
Hello,
purchased a pro license, but the license validation always fails. My server sits behind a proxy. I configured a Proxy in the initial setup. I can update/upgrade my system with apt. I can even download stuffs with curl using env variables configuration. But somehow the licence validation stills fails.
Regards
David
Re: The license validation always fails
Posted: Wed Nov 26, 2025 9:45 am
by rusty725
Did you setup proxy in Eve Gui - System Settings ?
Re: The license validation always fails
Posted: Wed Jan 07, 2026 4:23 pm
by retwaru
Good Day,
I'm also having the same issue.
I confirm DNS is configured correctly.
~~~ The following error confirm I cannot connect to the license server.
root@nyc3-eve-ng-lab1:~# unl_wrapper -a dummy
Jan 07 16:21:01 Jan 07 16:21:01 Online Check state: Invalid
~~~
To fix my issue, we have to permission FW to allow connection to ENG license server.
Can you confirm what is the EVE-NG License server IP we need to allow on firewall rule?
I believe the communication is on TCP port 443, but please also confirm.
Re: The license validation always fails
Posted: Wed Jan 07, 2026 10:03 pm
by rusty725
retwaru wrote: ↑Wed Jan 07, 2026 4:23 pm
Good Day,
I'm also having the same issue.
I confirm DNS is configured correctly.
~~~ The following error confirm I cannot connect to the license server.
root@nyc3-eve-ng-lab1:~# unl_wrapper -a dummy
Jan 07 16:21:01 Jan 07 16:21:01 Online Check state: Invalid
~~~
To fix my issue, we have to permission FW to allow connection to ENG license server.
Can you confirm what is the EVE-NG License server IP we need to allow on firewall rule?
I believe the communication is on TCP port 443, but please also confirm.
usually ports 443/80 need to be open
if you're behind a proxy then proxy needs to be setup within Eve GUI - System Settings.
Re: The license validation always fails
Posted: Thu Jan 08, 2026 1:51 pm
by retwaru
Thanks for confirming tcp port 8/443?
The most important information is missing - what is the destination ip address for EVE-NG license server?
In a secure environment, we're required to allow outbound connection, but we cannot allow it to all destination, hence the request to get the eve-ng license server IP.
The GUI/proxy is configured correctly - no question there.
Re: The license validation always fails
Posted: Thu Jan 08, 2026 8:26 pm
by rusty725