Router causes severe loss of speed

HP Pavilion a320n
March 13, 2006 at 07:35:35
Specs: Windows XP, Athlon XP, 512MB

Hi,

In short, my question is: is there anything that would cause you to lose tremendous amounts of DSL bandwidth when connecting to the Internet through a router versus connecting directly to the DSL modem?


In more detail, here is my problem:

I have recently upgraded from dial-up to DSL (BellSouth FastAccess), my Internet is suddenly blazing fast. Which is a good thing.

However, in the future I will have other computers sharing the connection, so I bought a router (Linksys WRT54G). I connected the modem to the router's uplink port and my computer to one of the router's main ports. After a few settings tweaks of the modem and the router, I got it to route Internet though.

I thought I was done, but then I realized my pages were loading much slower, especially when there were images or other media on the page. I decided to be all scientific about it and used one of those Internet bandwidth speed tests, comparing my computer when connected directly to the modem, versus my computer when connected through the router. The results:

Direct connection to modem: about 1 Mbps
Through router: about 100 kbps

I know routers add some overhead, but this is ridiculous! My speed has been cut by a factor of 10!

Does anyone know why this might happen? I'd greatly appreciate any help on this matter.


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#1
March 13, 2006 at 08:30:38

is there anything that would cause you to lose tremendous amounts of DSL bandwidth when connecting to the Internet through a router versus connecting directly to the DSL modem?

The answer is simply ... NO. Your router may have just started to malfunction. Try use another router.

i_XpUser


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#2
March 13, 2006 at 09:46:30

Try a firmware update for the router, I dont recommend using bandwidth tests. I prefer to test with similtaneous downloads maybe 2 or 3, and see what the full bandwidth is when added together.

As XpUser said the answer would be no. What connection speed are you on?

"After a few settings tweaks of the modem and the router, I got it to route Internet though."

What tweaks did you do exactly? If DSL and DHCP being used there usually isn't a lot of settings that need to be changed and as long as you make sure all equipment is rebooted should be fine

Build a man a fire, he'll be warm for a day.

Set a man on fire, he'll be warm for the rest of his life.


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#3
March 13, 2006 at 11:06:16

"After a few settings tweaks of the modem and the router"

You should not have to do any tweaks to the modem only the router. On the router you only put in the wan settings.

"modem to the router's uplink port and my computer to one of the router's main ports"

This also does not sound right. Router's wan port is not a uplink port and is clearly marked wan. If incorrectly connected this would explain some of your issues.

PS the bandwidth tests are just fine to get a baseline.

Give a person a fish, they eat for a day. Suggest they internet search and they learn a skill for a lifetime.


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#4
March 13, 2006 at 12:14:20

Hi,

Thanks for the quick responses.

First, I apologize if I was confused about terminology. When I said uplink port I meant the WAN port, the one for the Internet.

As far as tweaks, I played with both a little before anything worked at all. What I ended up doing to make it work is as follows:

1.) Switched the modem from "pppoe" mode to "bridge ethernet" mode.

2.) Set the router's WAN setting to "pppoe" using the DSL username and password formerly associated with the modem's old pppoe setting.

Note that in order for me to revert back to a direct connection to the modem, I have to set the modem back to pppoe to make it work.

Those are the tweaks I made. Internet through the router did not work with the router right out of the box, but did after I did these things.

Thanks for any insight into this!

-Mike



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#5
March 14, 2006 at 07:14:03

Check your computer nic card and make sure it is set for "auto " for speed and duplex ,do not hardcode a speed or duplex. If not set as auto and reboot .

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#6
March 14, 2006 at 08:34:35

Check those settings with your ISP

Build a man a fire, he'll be warm for a day.

Set a man on fire, he'll be warm for the rest of his life.


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#7
March 15, 2006 at 11:55:04

Hey all,

It seemed to randomly start working. I was playing with settings again but didn't end up making any permanent changes, and it just started working. The only difference (and it's a difference that should make no difference) is that the MTU size setting for the router was switch from "auto" (which was reporting 1492) to a manual 1492.

Weird.

Anyway, thanks for the help guys!



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