Is this impossible?

Forums › New Zealand Broadband › Is this impossible?

Jelliedsoup

26 posts

Geek

#70901 2-Nov-2010 12:07

Here are the lines stats from my modem:

Status:Up

Downstream Rate:6421 kbps

Upstream Rate:1045 kbps

and here are the results of a speedtest

I don't undertsnad how I could get 8.84Mb down if my line is connected at 6421?

cyril7

9058 posts

Uber Geek

ID Verified

Trusted

Subscriber

#399060 2-Nov-2010 12:28

What modem and is it running the lattest firmware, I have seen some that misreport sync speed due to firmware bugs, also what are the rest of the line stats.

Also with ADSL2 some things are dynamic with respect to speed, it may have misreported the speed as in a sleep time, again maybe bad firmware.

Cyril

stuzzo

534 posts

Ultimate Geek

#399071 2-Nov-2010 12:45

I've had the same thing on two routers I have, my sync is about 7 mbits but I can speedtest above it and once even up to 10 mbits even though the sync rate never changes.

I've noticed, though, that the sync rate is established when the router first connects (not sure if this is universal) and never changes until there is a reset on the link. Perhaps it just shows that figure instead of a dynamic rate that may be occurring.

Jelliedsoup

26 posts

Geek

#399144 2-Nov-2010 15:03

cyril7: What modem and is it running the lattest firmware, I have seen some that misreport sync speed due to firmware bugs, also what are the rest of the line stats.

Also with ADSL2 some things are dynamic with respect to speed, it may have misreported the speed as in a sleep time, again maybe bad firmware.

Cyril

Hi Cyril,

It's a linksys wag120n. The latest firmware which I just downloaded and installed has gave me the ability to se attentuation for this modem (previously it did not ).

What surpirsed me was the attenuation was so high (131dB). Any idea why this would be so high, i'm guessing it's the distance from the exchange perhaps? All our lines have filters on them, and I've run isolation tests on them. The only thing is my home has 6 telephone jack in them, maybe I should get a splitter installed?

--- System Information ---
Vendor: Linksys
ModelName: WAG120N
Firmware Version: A1.00.16 , 2010-08-06T14:08:04
GUI Version: A1.00.16_007
Boot Version: 1.0.37-5.4
Hardware Version: 0.01

--- DSL Information ---
DSL Driver Version: 3.4.4.10.0.1
DSL VPI/VCI:         0/100
DSL Status:          Up
DSL Mode:            ADSL2+
DSL Channel:         0
DSL Upstream Rate:   1049 kbps
DSL Downstream Rate: 6485 kbps

                      Down         up
DSL Noise Margin:     131 dB       113 dB
DSL Attenuation:      131 dB       339 dB
DSL Transmit Power: -381 dBm     -422 dBm

Didn't fix the odd results though, just ran it again and got

stuzzo

534 posts

Ultimate Geek

#399149 2-Nov-2010 15:10

Presumably there's a decimal point to decrease those db ratings by 10 (even so they seem a bit weird).

That speed test does seem a little bizarre for ADSL 2.

Jelliedsoup

26 posts

Geek

#399179 2-Nov-2010 15:46

I'm hoping there's a decimal point in there. But if there is, surely I should be getting a faster connection than what I do.

I've spoken to Telecom about this, and they've said everyone on my street gets around 5-6 Mb down.

It just seems like there's something missing in this puzzle.

cyril7

9058 posts

Uber Geek

ID Verified

Trusted

Subscriber

#399270 2-Nov-2010 18:01

Well assuming the decimal point is out of wack I assume 13dB downstream attenuation, you should be getting 14-16Mb/s, PM me your details if you want a test out to the demarc.

Cyril

SCM

459 posts

Ultimate Geek

#399393 2-Nov-2010 23:32

Must be a missing decimal point, dont think any isp would be setting DSL Noise Margin @: 131 dB 113 dB

Equinox IT

Cloud spending continues to surge globally, but most organisations haven’t made the changes necessary to maximise the value and cost-efficiency benefits of their cloud investments. Download the whitepaper From Overspend to Advantage now.

insane

3237 posts

Uber Geek

ID Verified

Trusted

#399420 3-Nov-2010 00:38

Have SS started to cache speedtest results?

Oldhat

180 posts

Master Geek

Lifetime subscriber

#399537 3-Nov-2010 11:21

That last result might be caused by an antivirus or browser caching the speedtest file.

Could be worthwhile disabling any AV, clearing the browser cache and then running the test again.