My DNS-321 has two 1TB drives in RAID 1 array.  One drive was giving a lot of errors, so I replaced it.  The NAS formatted the drive and seemed to rebuild the array successfully.  Now, I'm unable to log in to the volume.  I've received a couple of different errors: "The user ID or password was incorrect" and "Network path not found."  I'd saved the configuration previously, so I restored that.  Still cannot access.  I've power cycled the NAS several times.
Anyone ever experience this?  Anyone know how I can fix the problem?
Thanks,
Jack