What region are you located? .....
I'm in Australia, the DNR322L and all the cameras have the latest firmware versions (as there are several cameras I won't list them all, but each is the latest I can find on either the Australian DLink site or the Australian mydlink site). The DNR has a matched pair of 3TB WD Red drives. Using disk space quickly is a function of the constant recording (i.e. the failure of motion detection based recording to work), there is no point in buying a hi-res camera and reducing the resolution to that of one half its price, and in any case I don't want days of footage of my hifi, I only want the bit where some tries to steal it!! Why a DCS6004 and a DCS5222 have a 1:10 bandwidth usage at the same settings is beyond me, but so is most of this system.
On my machine (Windows 8.1 64bit, Java 32bit and 64bit, latest versions and patches etc.) IE11 "crashes" - actually it catches and halts a loop - with a C++ 2005 error. Why it is using C++ 2005 these days is also beyond me, from memory won't even install on Windows 8! The latest version of Firefox works to some extent but, for example, lists no cameras in the event setup screen. A virtual Windows 7/IE system gives fewer options on some of the DNR322 screens then Firefox does, and more on others. I have no idea what it might do from Safari on IOS, which was my original "away from home" management concept.
I purchased this system with the intention of using it for home security. My thought was that when I leave my home I could switch it all on such that any motion triggered the DNR to record video and then email that video to me. At present I can see no option anywhere to enable the system with a single keypress (as you would with any normal security system), and it seems I have to enable recording for each camera. Because the motion detection is so broken, any options relating to that function seems to be out of the question. I did manage to get the DCS5222 cameras to record "sporadically", indicating that the system might be trying to do something based on motion (although viewing of the bursts of recorded video seemed to have no motion in them), but after a few hours of sporadic recording they both went back to recording 100% of the time, with no config changes (so DNR still set to motion based recording). I can manually configure the DCS6004 to do motion detection and email me directly, but the DNR never records from it when set to motion detection. When the DNR is set to do motion detection, at this stage I have never seen any changes to any of the the camera's settings so I can only assume that it is doing the motion detection itself rather than using the cameras motion detection functions. Manually setting the motion detection parameters on any of the cameras makes no difference to what the DNR does.
D-Link help in Australia take about 9 days to answer a support ticket, and no matter how much information I give them they never provide any help, just ask for more information (usually trying to find another vendor to blame). With a 9 day turnaround in question/response, that's a waste of time.
At this point, given the hours I have already spent trying to get the DNR322 to work, my best option seems to be to remove the disks and throw it away! I have a QNAP NAS that works better - it uses the cameras motion detection to trigger recording via an FTP login, but it isn't compatible with some of the cameras and it provides other (non-security) functions so I'd rather not use it. But unless I can find a way of getting the DNR to do what it is advertised as doing, either the QNAP or the direct to myDLink options look better. myDLink seems to require UPnP to be configured on the router, which is a massive security hole that I'd rather avoid, but I'm sure I can find the ports that need to be open and get around it that way.
However at present the DNR is junk. What scares me most is that it has been on the market seemingly for several years, and yet D-Link seem to have made little attempt to make it work!
If you already have an external USB HDD, an alternative (less costly) product is the DNR-202L. The DNR-202L is not a HDD enclosure, but rather requires externally connected USB HDDs. Functionality is similar to the DNR-322L, but has its differences.
Anything that provides "the same functionality" as the DNR322, based on my experience can be considered to be a brick. A better bet is a QNAP NAP (one of the more powerful ones with a bigger CPU) and ensure the cameras are listed as compatible!
Having *****ed and moaned (oh, my preview says I can't say b-i-t-c-h, good job I'm not talking about dogs!), please understand that it is only out of utter frustration. I am perfectly willing to try any ideas to get this thing to work. My next approach will be a 100% reset of the DNR322 and one single camera, and start from scratch on a virtual "old" PC with Windows 7 32bit and an old version of IE. But really I shouldn't have to do this!!