Hi Dojo team,
After installing DataMiner in a new Windows server 2019 VM, I tried to execute the Configurator Tool to register the DMA in dataminer.services. However, after several retries, I always get the below error:
Set API Gateway (Certificate not found)
The log files indicates that the the tool was unable to find an auto-created certificate:
[2026-07-20 00:44:23.831] [INF] Certificate 'Auto-Created Certificate by DataMiner APIGateway' not found (attempt 1/10). Retrying in 2000 ms...
[2026-07-20 00:44:25.833] [INF] Certificate 'Auto-Created Certificate by DataMiner APIGateway' not found (attempt 2/10). Retrying in 2000 ms...
[2026-07-20 00:44:27.841] [INF] Certificate 'Auto-Created Certificate by DataMiner APIGateway' not found (attempt 3/10). Retrying in 2000 ms...
[2026-07-20 00:44:29.842] [INF] Certificate 'Auto-Created Certificate by DataMiner APIGateway' not found (attempt 4/10). Retrying in 2000 ms...
[2026-07-20 00:44:31.844] [INF] Certificate 'Auto-Created Certificate by DataMiner APIGateway' not found (attempt 5/10). Retrying in 2000 ms...
[2026-07-20 00:44:33.845] [INF] Certificate 'Auto-Created Certificate by DataMiner APIGateway' not found (attempt 6/10). Retrying in 2000 ms...
[2026-07-20 00:44:35.847] [INF] Certificate 'Auto-Created Certificate by DataMiner APIGateway' not found (attempt 7/10). Retrying in 2000 ms...
[2026-07-20 00:44:37.848] [INF] Certificate 'Auto-Created Certificate by DataMiner APIGateway' not found (attempt 8/10). Retrying in 2000 ms...
[2026-07-20 00:44:39.850] [INF] Certificate 'Auto-Created Certificate by DataMiner APIGateway' not found (attempt 9/10). Retrying in 2000 ms...
[2026-07-20 00:44:41.851] [ERR] Certificate 'Auto-Created Certificate by DataMiner APIGateway' not found after 10 attempts.
[2026-07-20 00:44:41.854] [INF] WizardViewModel. ConfigurationProgressChanged: 10
[2026-07-20 00:44:41.855] [INF] ConfigurationProgressViewModel. ConfigurationProgressChanged: 10
I had a look a the DataMiner Docs and I could not find a way to troubleshoot this issue. Please could you let me know what could be wrong?
Thanks.
Hello Miguel, what version of the installer are you using?
We have seen this issue previously in older versions of the installer/configurator and older versions of API Gateway.
This is most commonly caused by a binding in IIS.
Try removing the https binding to port 443 in IIS and re-running the configurator.
Hope this helps!
Kind regards,
Hi Tarkik,
Thanks for your answer. According to the installer UI, we are running version 1.0.0.0. We downloaded the installer from Dojo last week.
Indeed, removing the binding to 443 solved the issue. However, in our case, there was only a single binding to 443. To remove this binding, we have to create first a binding to HTTP (port 80).