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Bad connection with usb adapter?


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#1
mclimbin

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Hello all,
I have two computers on a wireless network. One is a dell laptop that works great with the wireless. The other is a computer that I built myself (after getting some great advice here!), which does not work so well with the wireless. I have the standard router that comes with ATT U-verse service, a 2Wire i3812V and a supposed 12 Mbps connection. It is in the other room wired to the TV (only about 20 feet away, with one wall between).

Using the ATT speedtest (http://www.att.com/speedtest/) with both computers in the same area, the laptop clocks in at usually between 9 and 11 Mbps. The desktop connection is really variable, sometimes as low as 1.5 Mpbs but rarely over 6. The USB adapter I have for the desktop is a Realtek 11n RTL819.

I'm assuming that the problem with the desktop is that adapter since all the other hardware is so much better than the hardware of the laptop. Do you think that is the case? Would a PCI card work better? If so, can you recommend one?

It seems to me with the hardware I have and the connection I have, the internet on the desktop should be screaming fast, but it just isn't. Very frustrating.

Thanks for your help,
mc


Computer stats:

Laptop:
Dell t4400 @2.2GHz, 4 GB memory
Windows 7

Desktop:
CPU:Ci7 2600k
MB: Asus p8/z68-v/Gen3
PSU: OCZTech 750w
GPU: Zotac GTX 560 TI
Ram: Patriot 8 gb 1600
Samsung 22x sata DVDRW
Windows 7 home premium
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#2
Troy

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http://www.realtek.c...?keyword=RTL819

Hello, it looks like there are a few models with RTL819 in the model name. Can you choose yours from the above link please? Also considering the desktop has 8GB RAM I am assuming you are running the x64 edition of Windows 7?

Troy
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#3
mclimbin

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Thanks for the response!

It is the 8191SU: http://www.realtek.c...=true#RTL8191SU

I downloaded the driver, but I'm not sure if I should install it. I can't figure out if I have an older or newer driver than this one. Under "About" in the utility program, it says I am running version 700.1601.1209.2009.

Ah, does that "2009" in the number above refer to the date of the version? The one on the website gives its date as 2011, so maybe that would be better?

Just FYI, ATT speedtest says I'm running at 1.5 Mbps now!

Edited by mclimbin, 26 March 2012 - 06:14 PM.

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#4
Troy

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Yes, please update to the latest driver directly from the Realtek website.
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#5
mclimbin

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Driver updated. This morning I get higher Mbps (between 6 and 9) but it still seems slow. If I try to watch a video on YouTube, it will play for three seconds then pause, play for a few seconds, then pause, then play for like a second, pause for a few seconds, play one second, pause etc etc.

I can pause the video for it to load, but it still loads slowly and I have to pause a 5 minute video sever times to watch the whole thing. Could this be a software problem instead of hardware?
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#6
Troy

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Highly possible, Youtube uses Flash Player so please update it to the latest version.
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#7
mclimbin

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Updated Flash player. No real difference in load times for video. When I watch it on the laptop it doesn't lag at all.
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#8
Troy

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Does it give you the same lag on a different web browser?
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#9
mclimbin

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Yes, I normally use Firefox and I tried it with Chrome. Same thing.
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