The license validation always fails

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Shish1977
Posts: 1
Joined: Wed Nov 26, 2025 9:10 am

The license validation always fails

Post by Shish1977 » Wed Nov 26, 2025 9:13 am

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

rusty725
Posts: 444
Joined: Thu Mar 29, 2018 4:19 pm

Re: The license validation always fails

Post by rusty725 » Wed Nov 26, 2025 9:45 am

Did you setup proxy in Eve Gui - System Settings ?

retwaru
Posts: 2
Joined: Wed Jan 07, 2026 4:13 pm

Re: The license validation always fails

Post by retwaru » 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.

rusty725
Posts: 444
Joined: Thu Mar 29, 2018 4:19 pm

Re: The license validation always fails

Post by rusty725 » Wed Jan 07, 2026 10:03 pm

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.

retwaru
Posts: 2
Joined: Wed Jan 07, 2026 4:13 pm

Re: The license validation always fails

Post by retwaru » Thu Jan 08, 2026 1:51 pm

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.

rusty725
Posts: 444
Joined: Thu Mar 29, 2018 4:19 pm

Re: The license validation always fails

Post by rusty725 » Thu Jan 08, 2026 8:26 pm

destination is https://www.eve-ng.net

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