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[chobo]

Hi, I just bough a dir-655 router and a dwa 556 network adapter and have been playing around with them all day. Right now I have a laptop and desktop connected wirelessly to the router.

So here's where I am at:

Windows 7 reports a speed of 130 Mbps on the desktop computer (using dwa 556 adapter) which is correct since the laptop has a wireless g adapter and the router slows down because of it. When I disable the laptop's wireless it goes up to 300 Mbps which is correct.

The signal strength from my desktop computer to the dir-655 router is 100% at all times, and it is about 15 feet away behind a wall. In the router admin under Status -> wireless it lists all the wireless clients with the speed and signal strength.

Desktop:     802.11n  130 Mbps (100% signal)
Laptop:      802.11g  54 Mbps (100% signal)

All the numbers above seem right to me, but when I try file transfers from the desktop to laptop my speed is < 1 Mbps. A 13 MB file took over two minutes to transfer... The laptop was right beside the router.

I have also tried streaming from my desktop to xbox 360 and the performance is also horrible. Windows media pc is very choppy and when I run the network tuning wizard I barely register enough bandwidth for regular tv streaming. This is actually worse then the router the dir-655 replaces which is a linksys wrt45g.

What is going on? It's nice that windows and the router report all these great theoretical speeds that I could achieve, but in reality I am getting horrible speeds.

Specs & Settings for dir-655

Hardware:  B1
Firmware: 2.00 NA

Wireless: G and N  (tried single N as well)
Security: WPA 2 with AES only
Short GI: Disabled


Notes

- No cordless phones in the place
- Two devices connected to network (deskop with 556 adapter and laptop with wireless G adapter)
- Live in an apartment (desktop picks up 5 networks, laptop about 15)

[FurryNutz]

What Hardware version is your router?
What Firmware version is currently loaded?

What wireless modes are you using?
Try single mode G or mixed G and N?
What security mode are you using? WEP, WPA or WPA2? Preferred is WPA-Personal. WPA2/Auto TPIK and AES.
What wireless devices do you have connected?
Any cordless house phones?
Any other WiFi routers in the area?
Turn off Short GI under Advanced/Adv. Wireless.

[chobo]

Hi, I've added all that to the original post

[FurryNutz]

Those are the correct connection speeds.

If you running mixed modes and DT and LT are online, you'll not see 300Mb unless you go into single more N. Then you're LT wont connect. So your stuck at mixed G and N.

How far away from the router are you when your connected? I presume a short distance?
Any cordless house phones?
Any other WiFi routers in the area?
Turn off Short GI under Advanced/Adv. Wireless.

[chobo]

The desktop is about 15 feet away and behind a wall and the laptop is sitting right by the router. I don't have any cordless phones in the place, but there are a lot of wifi networks in the area 5-15.

I've also turned off Short GI, but it made no difference.

[chobo]

I just plugged in my wrt45g router and did a file transfer test from my desktop to the laptop and average between 15-17 Mbps, which is a lot faster than the dir-655. The only change is I wired the laptop to the router, but I don't see how that could make that bi of a difference. Either way I'll test with laptop running in wireless.

At least this confirms the network adapter can send faster than 1 Mbps...


** Update. Doing a transfer from Desktop to Laptop with both using wireless on the linksys gets about 8 Mbps. still 4 - 8x faster than dir-655

[FurryNutz]

And the same speed at single mode G on the 655 router?

Also make sure the wireless adapter and built in wireless adapter drivers are up to date as well.
Is Extra Wireless Protection On or off? How about trying to disable WMM Enable as well.

[chobo]

I've updated to the latest drivers for the dwa 556 and I just flashed the dir-655 to 2.03. I'll play around with some of those settings.

What speeds should I be getting with this sort of setup on average? 50+ Mbps 100? 20-40?

[FurryNutz]

For wireless xfer speeds, 10-15Mb for single mode N, maybe upwards to 20Mb.
G I've seen up to 10Mb.

Wireless is different from Wired. I run Gb network here and see avg 50Mb using Cat 6 cabling and a network switch. You wont see the same speeds wired vs wireless.

[chobo]

Are you talking about Mega bytes or mega bits?

[chobo]

Can someone tell me if these are reasonable speeds under the following conditions?


30-35 Mbps:
- Desktop is wireless and laptop is wired into router. Desktop is about 20 feet away and behind a wall. There are about 15 wi-fi netorks in the area.

2-3 Mbps:
Same as above, only difference is I have switched the laptop to wireless.

Laptop is using a wireless b/g card
Desktop has a dwa 556 n card








 

[FurryNutz]

MBits
http://en.wikipedia.org/wiki/List_of_device_bit_rates