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Author Topic: Wireless N going loads slower than G  (Read 7612 times)

kornfan71

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Wireless N going loads slower than G
« on: January 27, 2010, 07:31:11 PM »

Hi,
So, I got the DIR-655 a few weeks ago, along with a Rosewill RNX-N300X (it's a Ralink RT2680 chipset). I have firmware 1.33b02NA, since I've been having issues with all of the other firmwares. Unfortunately, this one is no different. I have my router set with G and N on, and WPA2-only with AES security.
When I use Linux on my computer, I get G connection speeds due to a driver issue I have with my adapter. Result: 54 Mbps works as it should. Pages load. The network is functional, but not at the speeds I'd like.

Then I swap over to Windows. I get somewhere in the 200 Mbps area, with an average of 3 bars (good) connection strength. Result: I cannot get a page to load to save my life. I can hardly log into the router, or go somewhere simple like Google. Logging into the router takes a few minutes, and Google takes about 1 minute. I cannot send emails from Thunderbird, etc etc.

I have tried turning off DNS Relay, QoS, and WISH, and tried switching to N-only. Not one of them, alone or combined, helps. At the time, that one computer was the only device connected to the network, wired and wireless....

What could cause this behavior?
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lotacus

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Re: Wireless N going loads slower than G
« Reply #1 on: January 27, 2010, 07:41:02 PM »

Your looking in the wrong spot.

The fact that you can get the expected connection in linux but not in Windows, means your troubles are pointing to Windows.
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kornfan71

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Re: Wireless N going loads slower than G
« Reply #2 on: January 27, 2010, 08:00:37 PM »

I think you misunderstand. The whole point of using an N router is to get ~300 mbps. Linux gets wireless G speeds (54 Mbps), while Windows gets about 200-something Mbps (it fluctuates). (i.e. I am not getting the expected speed in Linux, but I don't care about that right now.)
Bottom line: Wireless G is going faster than Wireless N.
Operating system has nothing to do with it. If I swap Windows to the TKIP cipher, then I get wireless G speeds (as expected), and pages load fine. If I use the AES cipher in Windows, I get close to 300 Mbps, but realistically, it is ridiculously slow compared to wireless G (it can take minutes to load the router interface). And then, as I said, I cannot get Linux to play nicely with my wireless card, so I can only get wireless G speeds there, which are, again, faster than the wireless N speeds from Windows.

I'd also like to add that the problem is somewhat intermittent. If I go to a wired computer and screw around with a ton of settings and then reboot the router, the wireless can be OK for a little while. But once it gets screwed up, it stays that way until I reboot the router a few times.

Again I ask, why? (Besides the fact that D-Link can't code firmware worth anything.)
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wakkas

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Re: Wireless N going loads slower than G
« Reply #3 on: January 27, 2010, 08:13:07 PM »

i updated my firmware to 1.33NA. since the upgrade i observed the same on my dell laptop that (connected on wireless N ~130Mbps) my internet and network access is slowing down.. i have some videos on my server at home that used to play flawless but now cant even buffer properly.. copying 175MB file takes almost 4 mins :(

i see this only when updating to beta releases..
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kornfan71

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Re: Wireless N going loads slower than G
« Reply #4 on: January 28, 2010, 05:52:38 PM »

I saw this problem in all of the firmwares I've had so far (the newest stable release and 2 betas, now). The problem is only intermittent. Right now my wireless is doing just fine. The only thing I did was turn off DNS Relay, QoS, and WISH, reboot, then turn them back on and reboot.  :-\

EDIT: Turns out I accidentally switched to B and G, which explains why the network was working well. I swapped back to N & G and things seem to be going slower again... :(
« Last Edit: January 28, 2010, 07:55:24 PM by kornfan71 »
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kthaddock

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Re: Wireless N going loads slower than G
« Reply #5 on: January 29, 2010, 02:44:13 AM »

I seems you have allot of channels ovelapping your N-channel.
I't can only fit ONE N-channel in 2.4GHz band 42MHZ wide +-21MHz.
Use 1-6-11  or maybe  1-7-13.


kthaddock

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ASUS RT-N16  FW: DD-WRT v24 17140-vpn M NEWD-2 K2.6 -kong.
DIR-655 H/W: A3 FW: 1.31EUB02 This FW is working !
Never argue with a burk. They drag you down to their level and then beat you with experience
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kornfan71

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Re: Wireless N going loads slower than G
« Reply #6 on: January 29, 2010, 08:10:31 PM »

I forgot to mention that I've had the router set to channel 11 for the entire time, since it gives me the "best" performance...
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