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New PC - Comcast slower than on other computers?

Old 08-30-05, 01:20 PM
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New PC - Comcast slower than on other computers?

Hi - I asked this at the end of my HTPC thread last week but I think that thread is dead now and this really isn't HTPC related, anyway.

For some reason on the new PC I built I am only getting about 800k-1Mb d/l speeds on a wired cat5 connection to my router. On my laptop (wireless) and my desktop (wired) upstairs I am getting constant speed s of 4Mb+.

What could be causing this? I did a speed tweak thing to the registry but it had no effect whatsoever. I also don't even know what to search for on google to help me with this. I have made sure the ethernet driver was updated.

I'm stumped - anyone have any suggestions?


Thanks!
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Old 08-30-05, 10:22 PM
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I'm stumped on that as well nevermind. Are you running a network adapter card or using the onboard mobo LAN? Looks like a call to Comcast technical support might be in order.
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Old 08-31-05, 06:27 AM
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Originally Posted by Terrell
I'm stumped on that as well nevermind. Are you running a network adapter card or using the onboard mobo LAN? Looks like a call to Comcast technical support might be in order.
Onboard Gigabit LAN. Maybe I'll try a seperate card.

Comcast will politely tell me to fuck off, because a router is involved .

Thanks for the reply though, I'll keep looking.
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Old 08-31-05, 07:00 AM
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By "speed tweak thing to the registry" do you mean you ran DrTCP and changed the RWIN? Are you familiar with the site dslreports.com? There is a whole little community there devoted to fixing issues like this. I would start in the tools area with TweakTester.
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Old 08-31-05, 12:53 PM
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Originally Posted by AGuyNamedMike
By "speed tweak thing to the registry" do you mean you ran DrTCP and changed the RWIN? Are you familiar with the site dslreports.com? There is a whole little community there devoted to fixing issues like this. I would start in the tools area with TweakTester.
I'm familiar with dslreports but thought I'd ask here first before registering & posting over there. I think DrTCP is what I used but I'll check when I get home. Thanks for the tips.
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Old 08-31-05, 06:06 PM
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I use SpeedGuide's TCP/IP Optimizer 2.0, but it's the same principle as DrTCP. You basically change the Receive Window value, plus a few other settings. But I don't think that is your problem.

My suggestion is save yourself some trouble, call Comcast tech support.
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Old 08-31-05, 06:10 PM
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From the "This is something to try but probably won't Help" department. If you have a spare NIC sitting around somewhere, throw that in and see if your speed inproves using the card. Perhaps theres a problem with your onboard lan port. Also you could do a search for updated drivers for your mobo. One question I do have is what kind of mobo do you have?
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Old 09-03-05, 10:20 AM
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Wow. Forgot about this thread. Been doing other things all week and just downloading stuff from my laptop.

Terrell - because I'm using a router, Comcast will tell me to fuck off . I know from experience.

gregx55 - I don't have a spare NIC but I'm gonna buy one, see if it changes anything, and if not, return it.

The drivers are updated on my mobo, which is this one:
http://www.newegg.com/Product/Produc...82E16813127187

The bios is not updated on it (I don't think). But they are making me use a floppy to do it, which I don't have. Plus the screen I'm supposed to see (according to their website) to determine my bios version does not show up during boot.
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Old 09-03-05, 12:25 PM
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Well I figured it out. Looking at hundreds of posts over at broadband reports I decide I was going to register and post the results. I was going to answer all 11 questions before I registered. I could not figure out how to make myself pingable so I went into my router and disabled block WAN. I then noticed that the IP this computer is on was in the DMZ. It shouldn't be. Then I remembered that IP was for my XBox before (which I haven't used in a while). I got that ip out of the DMZ, ran a test, and I'm on par with my other PCs now.

Any reason why being in the DMZ would slow it down, and if I decide to play online games at some point in the future, will I have to be in the DMZ (and will it affect me)

Thanks!

<-------------- Happy I have normal speeds
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