SmallNetBuilder

There are lot of features to play with, but it's annoying to wait 15-40 seconds each time you change a setting for the router to come back.

I primarily use this for it's IPv6 connectivity and heavy Bittorrenting. The connection ceiling limit on this router isn't great, and I've found if I go over ~150 connections the router will get stuck in a half-working state where connection speed just crawls and you have to reboot the router. Also under load IPv6 connectivity tends to crap out and stop working.

The wifi signal strength is ok in my house, but not great. It could use third antenna and a power increase.

I have a cable connection (internet) 120 mbit.
With this route I could only have 30-50 mbit throughput.
When using my 6 years old WD114 I could reach 60-95 mbit.

For slow internet connections (< 25 mbit) this is a good router. If you have faster internet, forget this router!

Wireless performance was very good, though (much better than my old router)

"Hardware Version: B1" (a.k.a. "Rev B") does demonstrate substantial limitations on WAN-to-LAN throughput "out-of-the-box", but upgrading to firmware version 2.03NA eliminates the problem (or at least substantially improves it).

With firmware 2.02NA, I was seeing WAN throughput limited around 3Mbps (downstream), on a 6Mbps connection. After upgrading to 2.03NA, I see downstream throughput approaching 5.6Mbps.

NOTE: in the router's admin utility, on the firmware upgrade page, there is a button "Check Online Now for Latest Firmware Version". This button did not work for me -- it checked, and said "This firmware is the latest version". Of course it was wrong: it was running 2.02NA, and 2.03NA was available for download from DLINK's website.

I bought this router (DIR-825 Rev B2) for a relatively simple job: no routing at all -just be a reliable simultaneous dual band access point.

Unfortunately even that appeared to be too much to ask. The DIR-826 was okay to set up manually, although it would have been nice if among the 5 million features and click boxes it had a simple one called "access point" mode, which many other routers have. But fine, I did the set up job.

Once setup was fine I quickly found that router struggled to beat even the g router I had already in the house. At 2.4 Ghz it was not great, despite a variety of channel changes and placements. The 5Ghz was even weaker.

Worse yet the router began a really annoying behaviour of just dropping the internet signal from the main router entirely. At that point, i packed it back in the box after a week of annoyance and returned it to the seller.

A real waste, as the DIR-825 has a lot of good features and can be customized in many ways. But without basic performance and reliability, features are worth nothing. It's hard to believe that D-Link actually put this junk out there for sale - no respect for their own brand it seems!

I have both the dir-825 and wndr3700. I bought the dir-825 to have a dedicated router in my own room as the netgear was too far and realized only 2mbps throughput. the dir-825 could only do about 300 kbps in comparison. compared to wndr3700 the d-link is an ugly duck. simply looking at the boards make me feel like the netgear was built better. although I have had netgear routers that were exceptionally built but were plagued with all kinds of problems.