joe123

coknuck, the number needs to go after the -l, so it should look like this:

ping -f -l 1472 testmy.net

Yeah, my command looked like that.  According to TCP Optimizer, I already have scaling enabled.

Note that there needs to be a space after '-f' and after '-l' in order for the command to work correctly.  Running it that way, my packets begin to fragment at 1465 bytes.

cholla:

MTU = 1492

MSS = 1452

RWIN = 64240

Running the ping command gave me the same results as 'ping testmy.net', just like coknuck.

I got very similar results on the Line Quality test...

My computer is clean...and I restarted each time after changing settings.  My internet is very "bursty" when downloading large files.  I don't know a whole lot about TCP/IP but it's almost as if the computer is requesting too much data at once, so there's a huge initial burst of data but then it falls on its face trying to keep up and packets are getting lost / timing out or something like that.  Do you know if there's a good program I could use to try to analyze TCP packets and attempt to figure out what's going on?

Thanks, coknuck.  I actually tried using your Cablenut values but without success.  Any ideas?

My internet has been running very slowly lately and I'm having a strange problem when performing a download speed test.  During the 2992 kb download, the progress bar goes quickly up to about 32%, then stalls for 5 - 10 seconds, goes quickly to about 85%, stalls again, and then goes quickly to 100%.  I've tried multiple TCP parameter configurations using Cablenut and TCP Optimizer but to no avail.  The downstream power level on my modem (SB5120) was at 11 dBmV, and I thought this might be too high so I added two splitters and now the power level is at 2 dBmV, however, this didn't fix the problem at all.  I'm not sure what is going on here and would be grateful for any suggestions.  Thanks.

:::.. Download Stats ..:::

Download Connection is:: 884 Kbps about 0.88 Mbps (tested with 2992 kB)

Download Speed is:: 108 kB/s

Tested From:: https://testmy.net/ (Server 2)

Test Time:: 2006/06/23 - 8:52am

Bottom Line:: 15X faster than 56K 1MB Download in 9.48 sec

Tested from a 2992 kB file and took 27.718 seconds to complete

Download Diagnosis:: May need help : running at only 22.84 % of your hosts average (insightbb.com)

D-Validation Link:: https://testmy.net/stats/id-D35V8SHTG

User Agent:: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1) [!]