Pros I got it to work
Cons Poor documentation.
Summary The D-Link DWL-2100AP has 5 modes, one of which (Access Point) is documented. With the other 4 modes, you are one your own.
1) I never tried it as an access point, but this mode is well documented.
2) I got it to work as a wireless repeater, but it didn't extend my wireless coverage as much as I expected. I also read that clients attached to the repeater work at half speed.
3) The wireless client mode allows you to connect a wired device, PC, PS2, etc., to the 2100AP and have it connect to your wireless network. It was simple to configure, and it worked.
4 and 5) Point to Point and Point to Multi-Point Bridge. This is what I really wanted to do and ended up doing. At first, I thought an 2100AP could bridge with a DI-624 router, but I was wrong. So I got a second 2100AP and wired it up to the DI-624. Then I put the first 2100AP at the back of the house. I connected a wired switch to this 2100AP as well as several computers. So instead of an ethernet wire running from the front to the back of my house, I have a wireless bridge. Cool. But not without some trial and error. At one point, I had set the 2100APs to the auto-channel setting, thinking that they would sync on the same channel. I was wrong. Both 2100AP have to be on the same channel to work.
The main problem with the 2100AP is that it has so many modes that in some modes some settings don't make sense. It should really gray out the choices that aren't compatible with the selected mode.
Dlink should have a seperate document for each operating mode of this device. If you have problems with this device you will have to deal with...DUN, DUN, DUN...dlink technical support.
Pros Boosted my wireless signal 4x the original distance. Good customer service and an easy set up.
Cons Placement of the unit has a dramatic affect on the signal strength so you might not be able to place it exactly where you want it.
Summary I have a D-Link 624 router which has an average range. I bought two repeaters in the past and both were nightmare installations that never worked. Ironically, one of the repeaters was a D-Link that claimed to be compatible with my router. That router; however, did not support the most recent firmware so I was out of luck.
Six months later, I called D-Link and asked what repeaters were compatible with my 624 and the salesperson recommended the 2100-AP. I thought I would give it another shot despite my past difficulties. When I received it, I took no chances. I called support and insisted they walk me through the installation; step by step. They did and 10 minutes later I had a working repeater.
The range is impressive. I can go anywhere in the house and receive a strong signal. I can even work on the dock (about 30 feet outside) where I have a signal strength that is equivalent to the unboosted signal when I was only one room away.
If you have had problems with finding a compatible repeater/range extender, look into this unit. Just make sure you check your routers compatibility on D-Link's support page for the 2100-AP.
Pros Good set of features. I bought a pair to bridge two networks, using AP mode on one and AP client mode on another. This was easy to configure.
Cons Performance is terrible. Significant packet loss for minutes on end, then it'll suddenly come good. Occasionally the unit would just stop communicating on Wifi and require a reboot.
Pros Repeater mode works as advertised
Cons Endless rebooting and bizarre user interface; Plug on Power adapter makes for a weak connection. Browser unable to store password which means typing the password a lot.
Summary I have three of these running - one AP and two repeaters. They provide a good, strong signal and basically never need to be rebooted. The external antenna link allowed me to connect larger antennas for more gain.
I did need to upgrade all of them to the latest firmware, but thats easy from the DLink web page. The provided "management" software is completely useless.
Once you have them all up and running - with my setup that takes at least a few hours if not more - they work fine.
Why do they take so long to configure? Because it takes a long time to learn the web interface, which doesn't make any sense at all - it seems to be randomly thrown together. In addition, in order for any setting to change, the router needs to be reset, meaning you lose connectivity, need to re-enter the password etc. It's also very hard to see how well other APs are connecting.
This is a hot/cold product: Once you know how to use it, it provides excellent performance. But setting it up it a really bad experience - for experts only. 10 points for performance, zero for usability- makes 5 total.
Pros Good feature set on paper
Cons Unreliable in actual use
Summary I bought three of these boxes back in February. I configured one as an access point and two as ethernet bridges; one for my upstairs study and one for my living room.
I'll say now, I had to send one of these units back to D-Link earlier this year because its hardware revision was one version behind the other two (A2, rather than A3). This is not the same as the firmware version! Consequently, this unit would drop the connection all the time. It took D-Link two attempts to send the right box back.
I'm now having to send another unit back because it won't start up properly. The power light keeps going off, rather than staying on.
I deeply regret buying these products. They do not reach anywhere near the speeds indicated. The access point sometimes locks up and requires a reboot to get it working again. The signal doesn't seem to go very far when compared with similar units in similar houses. Plus the problems mentioned above.
In short, the features look good on paper but I think there are better products out there. Keep looking.