Not sure if this answers your question or not but this is what I do.
You can access the NVR by entering in the IP address on any browser in your home.
You can install the windows app on any PC to access it also
You can install the IOS or Andriod APP on any smartphone to access it as well.

My 2 cents is if you are buying all new just get the smart people recognition 4K cameras they work great.
You get then setup only people/vehicle recording which takes very little space. Or also motion detect recording which with a 4TB hard drive and 8 cameras will give you a solid 2 weeks

I believe if you have the newest version of the NVR HW (units that support smart people/vehicle detection) then the max is 6TB per interface. So if you have 2 internal SATA drives on the 16 channel you can put 6TB + another 6TB tghen they have an external SATA you can put another 6TB. But 6TB seems to be the limit of the HD.
If you use recording with motion dectect and not record all the time when nothing is moving with 6TB yo uget about a month recording depending on the motion at your prememsis more or less.
So myself I added a second so I have 12TB and get well over 2 months recording.
If all my camera were smart and set to only record people/cars then I bet I would get 4 months of storage.

I see the same problem the export and import of the configuration files is gone.
I like to backup my config in case I have a HW issue and need to replace my NVR,
I miss that capability

This wording confused me as well and should be changed.
the older version of the 8 channel NVR said something like

SHUTDOWN COMPLETE
IT IS NOW SAFE TO TURN THE POWER OFF

Where can I buy only the newest HW rev of the RLN8-410 with the N2MB02 so I can use my RLC-1220A in 12MP 4096X3072 resolutuion. Right now I have the RLN-410E whitch is the older HW.
I just want to but the new NVR, I already have a 4TB hard drive I can re-use and have the Reolink cameras already
When you order a NVR today on Amazon you are not guaranteed to get the latest HW.
How can I order it to ensure I only get the newest HW revision and if possible without the hard Drive

my suggestion is look in the 2 areas the way these have the setting can be a bit confusing.
Check the sensitivity it is related to the 4 times in a day. If you have the sensitivity way down then that may cause it.

Check on the trigger events to record and make sure it is set for every hour, that also has a time depandancy

Just figured out the fix...
Did a hard reset on iPhone and now the APP works fine again on LTE...
Apple IOS bug....

I just recently go a IOS update on my phone and ipad.
this seems to correlate with a problem I now see.
The IOS app can't connect when on 4G LTE but works fine on any WiFi connection.
Example is you go to coffee show on wifi you connect fine.
If you turn off WiFi the app cant connect.
If you use a 4G LTE WiFi hotspot in WiFi mode the APP works fine.
the second you turn off the WiFi hotspot and iphone goes back to LTE you cant connect to the NVR anymore.
I am using a NVR not sure if the same problem happens when going directly to the ip camera

White random halo's when view night vision