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You are here: Wireless Wireless Reviews D-Link DIR-655 A4 Quick Review

D-Link DIR-655 A4 Quick Review

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Introduction

D-Link Xtreme N Gigabit Router

At a Glance
Product D-Link Xtreme N Gigabit Router (DIR-655 A4)
Summary Market-leading single-band draft 802.11n router
Pros • Gigabit WAN and LAN with excellent routing speed
• Automatic QoS for Internet uplink and WLAN
• USB device sharing
Cons • USB device sharing is one Windows client at a time

Our review of the original DIR-655 is one of our most-viewed wireless router reviews, befitting its status as one of the most successful draft 802.11n routers. Since its original release, D-Link has continued to enhance the product, adding 9K jumbo frame support awhile back for its gigabit Ethernet switch and more recently adding its SharePort USB-sharing feature (see this part of the DIR-825 review for the quick poop on SharePort).

The other thing that D-Link has done is rework the 655's innards, mainly with an eye for manufacturing cost reduction. The current revision is A4 and the natural question is whether D-Link has sacrificed performance along with reducing cost.

Figure 1 is a shot of the original 655 with its top cover removed. It used a mini-PCI radio and nice metal heatsinks on the Ubicom 5160U SoC and Vitesse VSC7385 Gigabit Ethernet switch. 16 MB of RAM and 4 MB of flash made up the rest of the design.

DIR-655 original inside view
Click to enlarge image

Figure 1: DIR-655 original inside view

The mini-PCI radio module was an Atheros AR5BMB71 reference design using an AR5416 Baseband / MAC and AR2133 3T3R 2.4 GHz radio.

Original mini-PCI radio module

Figure 2: Original mini-PCI radio module

Figure 3 shows the A4 version board. The radio has been integrated into the main board and uses a more recent Atheros chipset consisting of and Atheros AR9160 BB/MAC and AR9103 2.4 GHz 3x3 MIMO radio. I removed the ceramic heatsink pads and confirmed that the Ubicom IP5160U was still used as the router SoC. Lifting the pad on the larger device, however, showed that a Realtek RTL8366SR Gigabit switch was now used instead of the Vitesse device.

DIR-655 A4  board
Click to enlarge image

Figure 3: DIR-655 A4 board

I'm not going to review features, since little has changed. You can peruse the admin interface via the online emulator if you like or read the original review.

Routing Performance

Table 1 shows a slight improvement in routing performance, probably due more to the newer firmware than any hardware changes.

Test Description A4 Throughput - (Mbps) Original Throughput - (Mbps)
WAN - LAN
257
231
LAN - WAN
272
245
Total Simultaneous
269
254
Max. Connections
22,172
200
Firmware Version
1.21
1.04
Table 1: Routing throughput

Figure 4 shows what the throughput variation looks like for the WAN to LAN, LAN to WAN and simultaneous routing throughput tests.

DIR-655  A4 routing throughput
Click to enlarge image

Figure 4: DIR-655 A4 routing throughput



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User reviews

Average user rating from: 5 user(s)

NOTE! Please post product reviews from actual experience only.
Questions, review comments and opinions about products not based on actual use will not be published.

User Rating    [Back to Top]
Overall: 
 
4.3 Features :
 
4.6 Performance :
 
4.4 Reliability :
 
4.0
 
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great router. just wish it had l.e.d (on/off) control

Overall rating: 
 
5.0
Features:
 
5.0
Performance:
 
5.0
Reliability:
 
5.0
Reviewed by bb12bts
December 17, 2011
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i bought this router over 3 years ago and is still going strong. i haven't updated the f/w past 1.33. all around great router both speed and coverage for the wireless are excellent. for the last 2 years i've had it in my room. the l.e.d lights are to bright, so i cover it with my sweater at nights
lol. in the mornings it's when i uncover it, it's like bread just taken out of the oven. lol i know that's probably the dumbest thing ever but just goes to show what a crazy router this is. it just keeps on going and going.

 

Great router

Overall rating: 
 
5.0
Features:
 
5.0
Performance:
 
5.0
Reliability:
 
5.0
Reviewed by Rv
May 16, 2011
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No issues. Works great. N range is great through walls and works well with all my devices. Gigabit is great too. I like the USB storage option, just wish I didn't have to install software to use it.

 

Unstable

Overall rating: 
 
3.0
Features:
 
4.0
Performance:
 
3.0
Reliability:
 
2.0
Reviewed by Martin
December 02, 2010
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It is my 3rd DIR-655 that I bought.

1st one worked perfectly after I changed all my wireless clients to DLINK X-TREME N stuff (frequent connection drops before). Had to disable most features to get a little stability with wireless activated (no qos, etc.).

Died on me when I upgraded to latest firmware.. worked for 1 week nicely with the new version, then after I had to change the IP range for local network, wouldn't work anymore (no interface, no connection in any port, no reset possible - reset switch didn't work anymore regardless of how/how long I pressed it).

Second one is still working, has to be restarted once in a while when internet connection becomes slow and unstable. It has only 2 PCs and a WII linked to it.

Third one is the worst... Has to be rebooted at least every week, if not more than that. It is linked to dlink stuff all the way (ethernet cards, gigabit switches, dlink nas, DAP, etc.), so this should help.. but no! It becomes very unstable, limited to no internet connection on all PCs and laptops... very frustrating! No feature is enabled in the router (no wireless, no qos, no schedule, etc.).

After investing in all DLINK stuff all over the house, I am changing for another brand for sure. Tired of having to battle for stability.

Good luck with this product :-)

 

Works quite well, lots of features, not one single problem with this router.

Overall rating: 
 
5.0
Features:
 
5.0
Performance:
 
5.0
Reliability:
 
5.0
Reviewed by Bert
October 03, 2010
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Works quite well, lots of features, not one single problem with this router. I've been using it about a month with Linux. I've always used D-Link routers and found this one exceptional especially for the fair price. Also works quite well with Roku wireless unit. Roku.com


 

Very Good Wireless...

Overall rating: 
 
3.7
Features:
 
4.0
Performance:
 
4.0
Reliability:
 
3.0
Reviewed by DaveMcLain
September 12, 2010
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I've been using this router for more than a year and I just was not satisfied with it as a router. It required a reboot every so often to allow it to reestablish a working connection to the internet. I totally believe that these problems were strictly firmware related and that the hardware is very solid.

For the last 1/2 year or so I've been using this same box not as a router but strictly as a wireless AP in a different installation and it's been VERY solid. I just disabled many of the "router" features and hooked it up to the network. Wireless range is exceptionally good in it's present location and that's in a large about 3500sq/ft older home with plaster walls etc. It's centrally located and it has no trouble covering the entire house with good strong usable wifi.

With the DIR-655 D-Link has a solid product and if they could just get their act together with the firmware it would be great. In my opinion they are just trying to do too much with the Shareport etc.

 
 

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