Rating: 
Summary: No problems with Linux.
Review: I installed a DWL-520 in my wife's Linux workstation to connect to my homebrew access point with no real issues besides having to download and install the wlan-ng drivers, which is probably not for the novice. The only two notes would be:- Must be a recent (post Pentium II?/Athlon) motherboard that supports PCI v2.2 The IWILL Athlon motherboard that is in my wife's computer worked just fine. If the green LED on the back of the card comes on when you turn on your system, your motherboard should be okay. If not, you may be out of luck. - MUST have it's own system interrupt (IRQ). Some PCI slots share interrupts with other slots or built in devices. If the card doesn't work, try moving it to another slot. Other than that, it's been rock solid under Linux. Unfortunately, I believe this card has been discontinued in favor of the DWL-520+ card, which uses a different chipset and is incompatible with Linux.
Rating: 
Summary: Very Simple to Install and Runs Great!
Review: I installed this in my PC desktop so I didn't have to drag an Ethernet cable through walls and under carpet. I've had zero problems with the card installed in my Dell with Windows XP.
D-Link provides good documentation and setup wizards that guide you through it all.
Rating: 
Summary: Drops Connections, Worthless Tech Support
Review: I made the mistake of buying a DWL-520 card and the DWL-514 router. Huge error. The card drops connections frequently and tech support has been unable to correct the problem. Check the internet -- I am far from the only one to have experienced this same problem. I am currently trying to get my money back. Run!
Rating:
Summary: DWL-520 PCI adapter
Review: I purchased the DWL-520 with a DI-614+ wireless router to link 2 computers to a cable modem. The DWL-520 was easy to install and the drivers and software loaded without incident. It worked very well with the exception of the mouse hanging up after a few hours of inactivity. I downloaded the latest firmware for the DWL-520 off the Dlink support website. It was a little tricky having to unzip but if you use winzip and let the winzip wizard unzip and install, it goes a little easier. Once the new firmware was installed the mouse problem was resolved.
Rating:
Summary: Very nice range and compatibility
Review: I recently set one of these up for someone in an old K6/2-266 machine. Works great - 100% signal strength at ~30 feet through two walls a desk. Only supports 128bit encryption, unlike the 520+. My one gripe is that it needs a longer antenna. The one I recieved is smaller than the one pictured here and barely sticks out from the back of the case. Had to reorient the PC a bit to keep the signal from being blocked. What would be great is a short cable with an antenna that can clip to any part of the computer. Otherwise, get a RP-SMA antenna extension if your PC's back faces away from your WAP.
Rating:
Summary: GNU/Linux Access Point
Review: I'm using the DWL-520 in my computer runnning Red Hat 9.0 and the HostAP driver. The card is acting as an access point. I get good connectivity between the DWL-520 and my laptop's Orinoco card. Oddly, I got poor connectivity between the DWL-520 and a D-Link router. I'm able to add an external antenna when needed. The card has a reverse gender SMA antenna connector.
Rating:
Summary: Please do not support a business that does not offer support
Review: Me, like many others have the problems with the Blue Screen of Death, and an NMI Parity error. It has nothing to do with memory or anything else. There is a problem with the driver which D-Link have done nothing to remedy. They have been continously confronted with the problem, but does not offer any solutions except for one that solves the problem on a particular Compaq model. This company does not deserve any customers. Please buy another WLAN card.
Rating:
Summary: D-Link DWL-520
Review: Picked this NIC up because it was selling for a reasonable price. I am using it with a Netgear MR814 Wireless B Router. Have had no problems with it since. It is running on a generic Pentium-III running Windows 2000 Server. I did experience some of the slow-down effect reported (slow mouse movement) initially, but when I upgraded to the latest software, that seemed to solve the problem. This computer is upstairs, about 40 feet away from the router. I bought a second one and installed it on another server downstairs - a PowerEdge 400SC about 20 feet from the router running Win2K pro. Again, no problems and no dropped signals.
I get about 75% strength upstairs and 90% downstairs. It does not interfere with the Netgear wg511 that I am using with my laptop. If you're looking for an affordable, basic, wireless NIC, consider this one. I recommend installing the latest software from the website first to ensure compatibility.
Rating:
Summary: Major software bug and NO customer support
Review: The 520+ "works"... for the most part. However, it
has a fundamental software bug that causes an NMI memory
parity error on shutdown causing your computer to freeze
with a "blue screen" and error message. There is no way
out of the freeze unless you unplug the computer. For Compaq's they have a workaround to their bug. You may...
may... might be able to workaround their bug by diddling your
system BIOS (always a fun adventure unless you botch up a keystroke). For HP (and possibly others) there is no workaround. You are stuck. Repeated emails to D-Link have yielded nothing, which says something about there customer "service". Stay away from D-Link unless you like pulling the power
plug in and out on your computer. Poor, buggy software and NO
customer service. Use and install at your own significant risk.
Rating:
Summary: Major software bug and NO customer support
Review: The 520+ "works"... for the most part. However, it
has a fundamental software bug that causes an NMI memory
parity error on shutdown causing your computer to freeze
with a "blue screen" and error message. There is no way
out of the freeze unless you unplug the computer. For Compaq's they have a workaround to their bug. You may...
may... might be able to workaround their bug by diddling your
system BIOS (always a fun adventure unless you botch up a keystroke). For HP (and possibly others) there is no workaround. You are stuck. Repeated emails to D-Link have yielded nothing, which says something about there customer "service". Stay away from D-Link unless you like pulling the power
plug in and out on your computer. Poor, buggy software and NO
customer service. Use and install at your own significant risk.
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