Problem loading a .conf configuration file onto an ATP200.

Good morning,
I have now managed to load the configuration. I had already tried the settings you suggested—port 60443 and IP 192.168.2.1—but without success. It is now working with both 192.168.2.1 and 192.168.1.1, which are the LAN1 and LAN2 IPs. I cannot say why it worked this time after several attempts. Here is the procedure I followed based on your advice: I uploaded the file to the configuration file list and then applied it. After 20 minutes, the process was still running, and no completion message had appeared. I then refreshed the page and logged in locally using port 60443. In any case, I do not believe this is the intended procedure for restoring a backup configuration; the correct method should simply be the standard upload of the .conf file. I therefore look forward to receiving a definitive solution from you. Thank you very much.