Hello,
I am running Windows XP Pro SP2 with SBC DSL 512k download speed but i am getting slow speeds. i have installed the p2p fix. here is the test data:
Browser/OS = Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.

Gecko/20051111 Firefox/1.5
Notes: Read the Analyzer FAQ if the above is not your IP address.
TCP options string = 020405ac01010402
MTU = 1492
MTU is optimized for PPoE DSL broadband. If not, consider raising MTU to 1500 for optimal throughput.
MSS = 1452
MSS is optimized for PPPoE DSL broadband. If not, consider raising your MTU value.
Default Receive Window (RWIN) = 65535
RWIN Scaling (RFC1323) = 0 bits
Unscaled Receive Window = 65535
Note: TCP 1323 Options need to be enabled for RWIN over 2^16 (65535). Windows 9x might also need the MS Vtcp386 fix.
For optimum performance, consider changing RWIN to a multiple of MSS.
Other values for RWIN that might work well with your current MTU/MSS:
511104 (MSS x 44 * scale factor of

255552 (MSS x 44 * scale factor of 4)
127776 (MSS x 44 * scale factor of 2)
63888 (MSS x 44)
bandwidth * delay product (Note this is not a speed test):
Your RcvWindow limits you to: 2621.4 Kbps (327.675 KBytes/s) @ 200ms
Your RcvWindow limits you to: 1048.56 Kbps (131.07 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = ON
Time to live left = 118 hops
TTL value is ok.
Timestamps (RFC1323) = OFF
Selective Acknowledgements (RFC2018) = ON
IP type of service field (RFC1349) = 00000000 (0)
::::::::::.. Download Stats ..::::::::::
Connection is:: 1314 Kbps about 1.3 Mbps (tested with 1496 kB)
Download Speed is:: 160 kB/s
Tested From:: http://testmy.net (server2)
Test Time:: Tue Jan 17 2006 16:29:49 GMT-0600 (Central Standard Time)
Bottom Line:: 23X faster than 56K 1MB download in 6.4 sec
Diagnosis: May need help : running at only 50.77 % of your hosts average (swbell.net)
Validation Link:: http://testmy.net/stats/id-ATSF3JQRW
::::::::::.. Upload Stats ..::::::::::
Connection is:: 335 Kbps about 0.3 Mbps (tested with 579 kB)
Upload Speed is:: 41 kB/s
Tested From:: http://testmy.net (server1)
Test Time:: Tue Jan 17 2006 16:30:53 GMT-0600 (Central Standard Time)
Bottom Line:: 6X faster than 56K 1MB upload in 24.98 sec
Diagnosis: 90% + Okay : running at 97.67 % of your hosts average (swbell.net)
Validation Link:: http://testmy.net/stats/id-1MDH2KNIS
Checking for Middleboxes . . . . . . . . . . . . . . . . . . Done
running 10s outbound test (client to server) . . . . . 329.09kB/s
running 10s inbound test (server to client) . . . . . . 1.30Mb/s
Your PC is connected to a Cable/DSL modem
Information: Other network traffic is congesting the link