Hi Skip.
I have a Go-Flex NAS and tried the copying a file to it just to test. It seemed to work OK and over 2.4MHz I maintained around 6.9MB/second on a 1.3 GB file.I then copied the same file back to the PC with no issues and the same 6.9 MB/second. Currently I am running on FW V1.00.
I did have an issue after changing from my old DIR-825 to the DIR-826L, where the NAS showed it was connected and active on my LAN, however could not locate the actual IP address (The DHCP list on the router did not show any IP address for the NAS?) and the Go-Flex internet share connection could not find it either. I eventually ran an APP on my IPhone called Scanny which searches the whole subnet and detects all the hosts on that subnet. After finding the IP address, I could then ping NAS IP address, but none of the PCs recognised the NAS. I then set DHCP reservation of the NAS on the router and set the same IP address as the address the NAS had on the DIR-825. I then rebooted the NAS and Router. After that all the PCs started communicating with the NAS correctly. Can't figure if this is a NAS or router problem.
One thing I did notice though is that after about 2 days, the router loses the web interface, It seems to work OK for a while after this happens, but I have noticed that if I stream Netflix while its in this state the Netflix stream slowly starts to deteriorate until it loses the server, the only recovery method is to reboot the router.
You are correct, this unit does have many issues and this is already the second unit as I returned the first. Working with DLink support is very frustrating and disappointing. Most of my calls with them have actually ended up just putting the phone down with no solution. I have tried V1.00 and V1.01 and there seems to be no difference. Unfortunately I am past the return period to return the router to Office Depot, now I am forced to deal with Dlink and that I am dreading.