ADSL problems

[sso]

Hi,

I have some trouble with my ADSL connection. I seem to loose a lot of data, and the web is running very inefficient some of the time.
Lookup of webs are sometimes very slow.

I have Norton Internet Security running and have noticed that the log records a lot of messages with a ident such as:
TCP none-sync/non-ack-packet on invalid connection. Packet ignored. They originate from the websites that I am trying to access.

Does anyone have an idea of what this means, and how I solve this problem.

Thanks

 

[JackMDS]

Did you try this?

Download DrTCP: <a target=new class=ftalternatingbarlinklarge href="http://www.dslre
ports.com/front/DRTCP021.exe">http://www.dslreports.com/front/DRTCP021.exe</a>

Run the program, it will show the current settings of TCP/IP parameters. Write them down.

You can change any variable that you want, click Apply, and reboot the computer, if no good; you can always change to your original values.

Start with:

MaxMTU - for DSL =1492 Cable=1500 DialUp=576

Tcp Receive - 255552

Window Scaling - Yes

Time Stamping - No

Selective Acks - Yes

Path MTU Discovery - Yes.

Black Hole - NO

Max Duplicate - 2

TTL - 64

Notice it said above Start with

These settings are not written in "stone" there is variability depending on the computer other setting. So try few setting and measure your Download for each setting.

In addition, in case a person has a Router the Router's MTU if set differently can affect the general MTU.

Link: Measuring the "Speed" of Internet Connection.

 

[Doh!]

Just a little fix to the link:

Here's the corrected link.