Customer Reviews
Does not work with DGL-4300 with latest firmware. 
2007-05-04
I picked this up on sale to use as a bridge from the garage to my D-Link DGL-4300. With the latest firmware on the 4300 (1.8) the 3420 will not connect in WPA mode, all it does is reboot every 20 seconds. D-Link supports answer was to either select WEP mode or downgrade the firmware in the 4300 to version 1.6. also the interface on the 3420 is not compatible with Firefox, you have to use IE to configure.
Works pretty well most of the time... 
2007-01-06
I had some trouble configuring it, but that was probably my fault. Once I got it up & running with my Linksys wrt54g using WEP encryption(64-bit I think) I was happy and haven't touched it since.
It seems to work very well when gaming on the xbox or xbox360, bridging from my downstairs office router to my upstairs loft. However, we watch a lot of tv/movies that I stream from my PC downstairs to the xbox, and after a certain amount of time (could be an hour, could be 3 hours) my network speed drops down to almost nothing and then will eventually conk out. The solution seems to be to turn it off for a while, then turn it back on and carry on from where I left off. My guess is that the unit is overheating a bit when dealing with a constant stream of high-bandwidth data.
I can live with that though, and this bridge works well for our needs. I'd recommend it to people. It works great with the xbox360 & xbox live, and works well for streaming data from my PC to my old xbox.
It works, and thats what matters 2006-09-05
Its smiple and thats what make it work well.
Plug it in and set it up and forget.
Very easy to use.
Configuration via browser is poor, but solid once configured. 2005-11-26
The browser-based configuration of this unit is poorly thought-out and buggy, but once configured, it's solid.
For example, you can't skip the setup wizard and just jump to the advanced settings. And you can't set WPA via the wizard. So you have to run the wizard first, and select WEP or open mode, complete the wizard, and then go to the advanced options and set WPA. It mysteriously took many attempts before the settings were actually saved.
Once I finished the configuration, the unit connected to my D-Link DWL-7100AP access point using WPA-TKIP, and has been operating for about a week now without interruption. I am using it with the XBOX Media Center Extender, and it's been able to keep up with streaming audio and video.
Only for those with D-Link routers 
2005-06-15
If your router is not by D-Link, and particularly if you use WPA encryption with that router, do not purchase the DGL-3420. I have tested it with both the Linksys WRT54G and the SMC 2804WMBP-G, and WPA fails with both of them. D-Link technical support, in fact, has confirmed that THEY know the adapter doesn't work using WPA with the WRT54G.
Besides, for significantly less money you can get a wireless bridge with a lot more functionality. After this product failed for me, I purchased the Netgear WGPS606, which can connect FOUR items (X-Box, computer, whatever) to your wireless network AND two wireless print servers, all for $20 less (on Amazon).
Lag free 
2008-06-27
Works as advertised when paired with DGL-4300 router...easy set up. Gameplay on Halo 3, COD4, Battlefield, etc is just like wired connection. I have 2 xbox360 (one wired to router and wireless) no issues with disconnection and lag due to sharing...
Good when it works... 2008-05-11
I have two of these devices. They have to be configured through a web-only setup, which is a bit of a drag. I am using WPA encryption. The first one works great. The second one I cannot get correctly set up for love nor money; not sure if it's a different revision of the hardware or what. (I bought it later than the first.)
Some notable glitches:
- you can save your configuration, but if you try to load it again you get "CFG checksum error.", i.e., it doesn't work.
- there is a wizard but it doesn't consider the possibility of WPA encryption.
- the user interface is truly terrible; e.g., except for the wizard you cannot set the channel.
- the latest version of the firmware doesn't work with the XBox360 or WPA at all -- even though I'm using a D-Link DGL-4300 router.
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Update: I eventually got it to work. Here is what I did.
1) Changed the password on the router
2) Changed the password on the DGL-3420 -- nope still didn't work
3) Changed them both back... and suddenly, they worked.
I'm not sure _why_ it worked, but it did. I know they were getting the same passwords because I was copying and pasting from a text file. I know that I changed it back to exactly what it was before, because other devices on the network didn't have to be reconfigured (beyond resetting active connections).
Still not the kind of thing I'm looking for in a product.
When 802.11n stabilizes a bit more and I buy new equipment, it will NOT be D-Link.
It broke 2008-03-15
It lasted three months then the power supply went out. Before that it worked pretty well.
Not bad but Amazon price is too much for an xbox 1 adapter 2008-01-28
Have one connected to my xbox 360.Like the previous review said setup is buggy.The latest firmware update seems to have fixed autoconnect problem i had with xbox live.It now connects as quiclky as my 360 turns on.Don't see any real disadvantage over using a network cable.Streaming video and audio are almost instant even with higher res.
It was designed for the Xbox 1,i have a hard time seeing anyone paying more than $50 for it.
It will work right out of the box but to get it to work well you'll need to set it up for your system.If your not a pc wiz i would go with the OEM Xbox 360 adapter.
Overall i am happy with it.It is a workhorse.
D-Link DGL-3420 Wireless Gaming Adapter Does the Job 
2008-01-27
The D-Link DGL-3420 Wireless Gaming Adapter (Xbox Compatible 802.11a/802.11g, 108Mbps) does its job perfectly. Used it to hook up a DirecTV HR21 to my home network. It works flawlessly. Five stars for performance. One star for price. It would be a much better deal at half the price (< $50).
