Hi all! I'm getting the following error when trying to manage some Dahua NVR devices in SmartPSS under the "Device CFG" option. I can perfectly connect and view to all my IP Cameras through the Live View and Playback sections, but when I try to enter or change any parameter under "Device CFG", the following error appears and the program crashes.
This occurs in some NVR devices but not with all of them. I manage 9 different devices, some of them are different models, all are in different geographical locations, and some of them under different ISPs. And this is happening in 5 of them that have not any common details (as far as I know). I've tried multiple solutions, including forwarding and triggering the 37777 and 37778 ports, configuring the IP as a DMZ to figure out if it was a port problem; even accessing with different computers in different locations with different SmartPSS versions. But I can't tell what's the problem actually. The only way to me for configure those failing devices is from the local networks, using AnyDesk to connect to an always powered on computer.
Have you ever encountered this error or could you give me some advise on how to fix this error?
Thank you all in advance!

This occurs in some NVR devices but not with all of them. I manage 9 different devices, some of them are different models, all are in different geographical locations, and some of them under different ISPs. And this is happening in 5 of them that have not any common details (as far as I know). I've tried multiple solutions, including forwarding and triggering the 37777 and 37778 ports, configuring the IP as a DMZ to figure out if it was a port problem; even accessing with different computers in different locations with different SmartPSS versions. But I can't tell what's the problem actually. The only way to me for configure those failing devices is from the local networks, using AnyDesk to connect to an always powered on computer.
Have you ever encountered this error or could you give me some advise on how to fix this error?
Thank you all in advance!