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[wfeltmate]

Ok, I see a lot of people complaining about a range of issues they feel they have with this router. Yes, there are a few things that need to be worked out, but not the plethora of complaints present on this board.

--Connecting at 300mbps--
Yes, you can. This router does support it plenty well with the 2.03NA firmware. I have no issues connecting at this speed on my HP dv5-1008ca laptop, which uses an Atheros AR5007 chipset. Upstairs, downstairs, no issues.

What is likely the problem with you being able to connect at 300mbps is your wireless chipset. My other laptop, an HP dv6-3064ca, which uses either a newer Atheros chipset or a Broadcomm(it was sent in for repairs, so I am unsure) has no luck with connecting at 300mbps. It supports 300mbps, but something in the driver is likely preventing the 300mbps. Regardless, the problem is with the wireless chipset, NOT the router.

--Connection Issues and Reboot/Power-Cycling--
I cannot comment with certainty about why it might be happening, as I have never experienced this issue. I purchased the router back in, I believe, June and not once have I had reboot the router. In fact, the only time I have had any issue with this router was when I added a wireless card to a desktop computer I have, and even then, it appears to have been an issue with the wireless card. The first one was unable to connect using the security settings I had set in the router, which seemed odd, as the settings were pretty typical. I replaced the card with another model and it work flawlessly on the first try. Which further leads me to suspect that most of the troubles being experienced by users is caused by issues with either their wireless chipsets, or issues in the chipsets used by D-Link in this router. D-Link doesn't manufacturer these chipsets, as depending on the hardware revision, the chips come from either Realtek or Atheros, and there is only so much firmware fixes can do to help correct these problems.

--LAN Transfer Speed--
If you are having slow speeds with the DNS-3XX line of products, the speed issue is more to do with the the NAS than the router. I have no trouble transfering at great speeds between computers, but to my DNS-323, my wireless speed is about 3MB/sec and wired (gigabit with 9k jumbo frames) is about 13MB/sec. The DNS-3XX series of products are entry level, home networking NAS devices. If you want blazing fast speeds, you'll need to shell out for a more expensive NAS from Synology(sic?) or other NAS devices. People using these higher end devices have reported much faster transfer rates.

--WAN Transfer Speed--
I can't speak from experience for faster connections, but even on the 2.03NA firmware, I have no trouble maxing out my 15mbps/2mbps cable connection. Sure, you may experience speed differences between the firmware versions, but you need to understand that the small tweaks between firmware versions only plays a SMALL part. Every broadband company uses different configurations and hardware at their switching stations. Heck, many likely even use their own proprietary software on their servers! Do you honestly think that D-Link, Netgear, Linksys or anyone can design router firmware to work perfectly with every internet provider? Yes, you may be having troubles, and I understand it is very frustrating, but the router manufacturer cannot be the only one to be blamed if it doesn't work well for you. This is why ISPs generally don't officially support any routers.

--Conclusion--
This router may have some outstanding bugs, but I have had not trouble with it since upgrading to the 2.03NA firmware, and I can honestly say that this router works wonderfully for me. Perhaps my success has been my use of mostly default settings. The only changes I have made are to the security settings, and IP address reservations.
My advice for people is to try using IP reservation for your devices to see if this helps any. Perhaps this might solve the connection drops or offer you a little extra transfer speed.
However, all that being said, I don't deny that there is a chance that it could be firmware issues. D-Link may be one of the largest providers of these products, but with all the different models they offer and have offered, there is no way they can promise bug free firmware. Look at all the patches Microsoft releases for Windows every month haha.

[titan3025]

I agree. The two annoying bugs that I really perceive actively is the low wifi range and not seeing the status of the wifi devices connected at 5ghz. 2meters away I also have 300mbit but 6 meters away I only have 50-80mbit with my macbook pro.
 

[bkspero]

Nice reasoned post.  Thanks.

But not fully consistent with my experience.  Maybe I was doing something wrong.  I have an A version with whatever FW is the most current (1.13?).  I have shifted the 825 to service as a wireless access point where it does less harm.

I can connect at 300 mbps, but transfer speeds were not good despite the high reported connection speed.  The much cheaper router that replaced it reports only 270 mbps, but about 3x the transfer speed (13 mBps vs. 4 mBps).

LAN transfer speeds.  Again, slow.  Even computer to computer.  4 mBps was about all it did over CAT 6 cable (similar to wireless!).  I get about 40 mBps on the cheap replacement.

WAN transfer speed.  Like you, I have intermediate-speed internet service, and my experience was consistent with yours.  Speed was as-expected.  The problem was with frequent lockups.  Having to power cycle the router anywhere from 2x per day to 1 per week.

My disappointment, and I think the source of many others' frustration, is not that the product does these things, but that Dlink chose not to fix the firmware in a timely fashion.  In the case of the A revision, not at all.  Based on the postings of many, they have also not addressed all issues  with the B revision.

You have either been fortunate enough, or skillful enough, to have gotten a good router or found the settings that causes it to function as advertised.  I and many others were not so good or fortunate.

Any suggestions would be appreciated.