Post back and let us know if you can restore access with the other PC.
slow update. LOL
thanks for suggestions and help.
I finally got it back and am currently uploading the files to an external hard disk.
I found I had to have both original drives including the "recovered" drive installed. I let the drive lights flash all day until they were on solid.
At that point easy search reflected the nas with the home_network name I had used as opposed to being the generic dlink. And it also reported the correct user partitions I originally setup. It would error out when told to not accept dns though. And would not let me map drive letters. My old dual core laptop was perhaps too slow and it was timing out.
I was able to access the admin page also.
So I installed it on the lan and the old drives came up with all files seeming to by ok and even the movie files were 7gb instead of being truncated.
Not wanting to lose all that, I connected the external drive and starting downloading everything. Now there were 120,000 files in 800gb as opposed to the 496,000 files "recovered" before. 12 hours later 5% or so have been copied and I noticed the download speed as 1mb/second. Rough calculations indicated that would to 9 days to copy. LOL. So I'll try the other computer and see if I can get that up to 100's mb/sec the router is supposed run at.
Router is the belkin ac 750 and does not support as far as I can tell reserving an ip for the 321. But it is working dns at 192.168.2.11.
So it looks like I'm recovering and perhaps it was more my old laptop than anything else.
At least I learned (again) to make backups.