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Author Topic: loss of internet speed and constant gaming lag using DWA-160 with DIR-825 revB  (Read 4995 times)

dragonskater1085

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loss of internet speed and constant gaming lag using DWA-160 with DIR-825 revB
« on: August 28, 2009, 12:01:56 PM »
I recently bought a DIR-825 rev B and have updated the firmware to 2.02 as well as the software for the DWA-160.  My problem is that despite the face that they are both N devices and dual band, my download speeds are much lower than they should be (I'm using AT&T DSL at around 700kbps).  Even my wired computers suffer.  I am currently downloading with a wired computer, with no other devices connected, at around 200-300 kbps, which is less than half the speed my internet is capable of.  Also, when playing games with the wireless computer, while lag is not constant, it is a pretty common problem.  Any help would be appreciated. 
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claykin

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Re: loss of internet speed and constant gaming lag using DWA-160 with DIR-825 revB
« Reply #1 on: August 29, 2009, 06:05:52 AM »
So, you have AT&T DSL with 700Kb download speed?  I guess DSL lite?

First, what type of modem do you have and did the modem doing the pppoe (authentication with your username/password) for did you switch the modem into bridge mode and setup the DIR_825 to do pppoe?

Check your MTU settings.  A good place to go to test your settings is http://www.dslreports.com/tools.  Click tweak test and it will test your connection, settings and give you advice.

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BOFslime

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Re: loss of internet speed and constant gaming lag using DWA-160 with DIR-825 revB
« Reply #2 on: August 29, 2009, 12:09:26 PM »
I had issues with the dwa160 that I could only associate to bottle necking in the usb bus.   Bandwidth was fine, but there would be latency spikes or stalls in data transfer that no amount of driver updates, setting tweaking was able to resolve.  So I returned that and got the 556 instead (which sadly does not support the 5ghz band).  The 556 resolved my issues with the latency spikes, but it did come with its own other issues, but at lease these were resolvable by tweaking.

Verify your settings and start isolating;
-Are there other AP's on the same channels or overlap channels?  (1, 6 and 11 do not overlap, for instance).
-disable 5ghz, or 2.4ghz (whichever you're not useing)
-try setting N only, or G only (must be 2.4 for G)
-try forcing WPA2/AES, or temporary disabling encryption
-try disabling traffic shaping, QOS, and WISH, also check traffic shaping upload speed is correct and try reenabling.
-If you did not do so after updating firmware (or even to further test) reset the 825 to factory defaults and resetup from scratch.

My best guess from what you're saying is possible signal overlap(another AP on the same or overlapping channel), interference (EMI? 2.4ghz phones, etc), or poor signal in general.  MTU is good to check but unless you've fiddled with this in the past you should already have 1500 set as this is default ethernet.

As internet speed testing is haphazardly reliable, greatly depending on your geographical locations and the ISP's peering out of that region, check also:

http://speedtest.comcast.net/ (I've pulled almost 300Mbps [that's not a typo] from this test from my work, its very fast)
http://speedtest.net
http://internetfrog.com

-b
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