Tweaking For MaxDSL

Jeff · Apr 03, 2006, 14:44:46

MTU 1430
Receive Window (RWIN): 176528
Window Scaling: 2
Path MTU Discovery: ON
RFC1323 Window Scaling: ON
RFC1323 Time Stamping: OFF
Selective Acks: ON
MSS requested: 1390

Seems to yield best results so far. My sync speed is 7008kbps, Downward Att. 47dB, SNR 9dB.

dlg1 · Apr 04, 2006, 10:05:34

Hi Jeff,

I am able to set up my broadband connection fine, but all those figures up there ^^^^^ mean absolutely nothing to me.

I only have a BT Voyager 100 Modem, am I able to change the settings? Can't seem to find out how.

Thanks, Danny.

Jeff · Apr 04, 2006, 11:04:06

First, download Dr TCP.

Run it and enter all the values I have posted above. Reboot and try.

If you ever want to return to default, just run the utility again and leave boxes blank.

You will notice that there is a dropdown box "Adaptor Settings". Make sure you click save on every listed item.

mrapoc · Apr 29, 2006, 11:20:47

Is it best to do this after the 10 days syncing?

Jeff · Apr 29, 2006, 21:09:55

No, do it now ... don`t worry, you won`t knack yer connection up stopping and starting your router (have noted your concerns in other threads). IMHO, this will help you

mrapoc · Apr 29, 2006, 22:37:34

im scared of wot i can do
blew up our psu once

mrapoc · Apr 29, 2006, 22:46:01

btw i dont get
Window Scaling: 2
MSS requested: 1390
on my version of dr tcp
i have a speedtouch 580 so is there any way to insert these in config?

Jeff · Apr 30, 2006, 21:27:38

These stats were pasted from DSL Reports. In DR TCP, enter into TCP Receive Window something between say 75000 and 177000, I chose 176528, Window Scaling :Yes , Time Stamping: No , Selective Acks: Yes , Dial Up MTU:1430 , Path MTU Discovery: Yes , Black Hole Disc: Default , Max Dup Acks: 2 and MTU: 1430 , click save then select other devices from drop down list that may be there and click save on each one too. Close and rebott PC, reboot router too

yorkiepudd · Apr 30, 2006, 21:48:51

So. what do you adjust when you have a router? Do you set the router up to these stats, the PC, or both?

Used to use DrTCP when I relied on the good old frog, but never gave it a second thought since I went wireless???

Jeff · May 01, 2006, 02:30:04

Yorkie, most routers only have the ability to adjust MTU and that`s about it basically. TCP/IP configuration looks to PC first so I personally set router MTU at 1500, only because if PC MTU is set higher than router MTU, there may be a problem.

One must remember that, tweaking may give you only a slightly better performance or adversely, a slightly worse one. If you`re looking to gain an extra 4MBit then forget it

Think of it as Redex for an internet connection

yorkiepudd · May 01, 2006, 16:37:39

Thanks for that.

I only asked as I noticed from the last check @ DSLreports that I was getting a few retransmits, never had that before I had the router.

Just checked again however and all seems OK, so must have been just one of those things...

mrapoc · May 03, 2006, 16:40:45

How about the optimizer from speedguide. i think ill wait for my connection to settle down then use that as my settings with drtcp just aint saving. i am also using pppoe which is an option in the speedguide tool - changes mtu by 64!

mrapoc · May 03, 2006, 17:08:15

just womdering - when will i know my max speed by? its all over the place atm at a max of 5mbps even though im synced at 8000kbps. this must sound really n00b

kuja · May 04, 2006, 08:26:12

10 days after you're 'uncapped'

and your speed after that will most likely be as jumpy as it is now

mrapoc · May 04, 2006, 19:11:33

10 days up and...IM STILL AT 8MBPS WOOOO

Coopes · May 04, 2006, 19:38:56

Alright for some

Xbandito · May 04, 2006, 20:09:49

I think he is synced at 8128 Mark.......doubt very much he is downloading at 8mbps

mrapoc · May 04, 2006, 20:23:10

as much as i hate to agree - i still havent made it past the 5mbps mark

know any good server to download from to test me connection?

Coopes · May 04, 2006, 20:33:56

http://www.giganews.com/test_connect.html

there you go use europe. Been told that is the best one.

mrapoc · May 04, 2006, 20:35:57

ahhh 2.5mbps atm

I WANT TO SEE 8MBPS IN MY LIFE TIME lol

Coopes · May 04, 2006, 20:38:06

Sorry mate but i don't think it will ever happen

Bill · May 04, 2006, 21:22:36

Quote from: mrapoc on May 04, 2006, 20:35:57
ahhh 2.5mbps atm I WANT TO SEE 8MBPS IN MY LIFE TIME lol

If you live forever you wouldn't... 8128Kbps includes DSL overheads, perceived wisdom reckons the most you'll ever get is about 7200Kbps on data.

Most I've ever seen (apart from an occasional very brief blip) is just under 6600.

mrapoc · May 04, 2006, 21:27:37

ok ill correct my statement
i would like to say 6mbps+

Bill · May 04, 2006, 23:03:15

Quote from: mrapoc on May 04, 2006, 21:27:37
ok ill correct my statement
i would like to say 6mbps+

You should see that OK, but you'll probably need to get up very early one morning to do it.

Which is probably why I've only seen it once

mrapoc · May 05, 2006, 18:13:37

hopefully some magical technology will be developed so that we all may see that - AT NORMAL TIMES