I have installed numerous Dahua NVRs over the years and have had zero connection issues.
The new model I bought on February 13th this year didn't want to connect to any P2P service.
Here's what it needs.
You must have a Dahua account and add the NVR to the account for DMSS to work.
You need the latest version of SmartPSS Lite for the new NVR version.
Another member has old and new NVRs on his DMSS and said after getting the Dahua account and adding the new NVR to it the older NVRs still work.
The new model I bought on February 13th this year didn't want to connect to any P2P service.
Here's what it needs.
You must have a Dahua account and add the NVR to the account for DMSS to work.
You need the latest version of SmartPSS Lite for the new NVR version.
Another member has old and new NVRs on his DMSS and said after getting the Dahua account and adding the new NVR to it the older NVRs still work.