Hi Rafał Raczkowski,
Thank you for confirming that the issue has been resolved glad to hear everything is working as expected now.
For future reference, if similar behavior occurs with Azure PostgreSQL Flexible Server, the following checks may help:
1.Verify the server status in the Azure portal to ensure it is running.
2.Use backups to restore from the latest point if the server becomes unresponsive.
3.Review the SKU — burstable (B-series) SKUs may struggle under sustained workloads; upgrading to General Purpose or Memory Optimized can help.
4.Monitor performance and configure alerts to proactively detect issues.
5.Check external factors such as firewall rules, networking, or recent configuration changes.
For the benefit of the community, could you also please share what steps helped resolve the issue on your side? This may help others facing a similar problem.
Feel free to reach out if you need any further assistance.