I hate to have to post this, but D-Link won't sticky the information. F\W's 2.03NA and 2.05NA limits upload speed by default to 1MB(1024kb) in the QoS settings. I take no credit for this information. I happened across it recently and was able to fix my upload speed problem with 2.03\2.05. My internet speed should be around 25MB down and 3MB up.
2.02NA didn't have this problem. I contacted D-Link support after 2.03 came out and they had me jumping thru hoops trying to get the problem fixed. They appear to know less about their hardware and software than users here do. They NEVER pointed me to the QoS limit that was causing my 3MB upload speed to be cut by 2/3rd's. I explained the problem in the most simplest way I could originally and after some back and forth with no fix, they actually asked me to explain to them again what was happening. DUH! Your 2 most recent F\W's degrades my 3MB up load speed, THAT I PAY FOR FROM MY ISP, and reduces it to 1MB. It can't be easier to explain.
Last week I happened across a statement in the "firmware" thread that mentioned the issue I was having and something about a QoS setting. I didn't know what they were talking about. I did some Googling and found out about the issue I was having on another forum and where to find the setting when logged into the router and how to change it to fix the problem. Now I can use the latest F\W and get what I pay for from my ISP.
I asked D-link, just a little harshly, to inform owners of the DIR-825 of the issue and the fix by placing a sticky in this forum. I then asked them to respond that they would do so. I haven't heard a peep. I guess they got their feelings hurt by my honesty. I didn't curse at them, but I didn't mince words either. They put me thru a dance that was a huge waste of my time while someone else finds the fix to their problem that THEY CAUSED.
Now the only thing wrong is that the SharePort Utility doesn't function on my Windows 7 PC. It works on my Vista PC. It worked for a couple of months on my Win 7 PC and then just quit one day. I'm not the only one having the exact same problem. It can be seen in the SharePort forum. D-Link is passing the buck.
Thanks to "orgwizard" and his post
http://forums.dlink.com/index.php?topic=21333.15 that I happened across in the Firmware thread that got me on the way to fixing D-Links problem.