i'm using windows xp corporete version:
my isp is wild blue: supposed to have 1500 down and 256 up
I do have cablenut installed
Browser/OS = Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)
Notes: Read the Analyzer FAQ if the above is not your IP address.
TCP options string = 020405b4010303000101080a01f8312900000000
MTU = 1500
MTU is fully optimized for broadband.
MSS = 1460
Maximum useful data in each packet = 1448, which is less than MSS because of Timestamps, or other TCP/IP options used.
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:
513920 (MSS x 44 * scale factor of

256960 (MSS x 44 * scale factor of 4)
128480 (MSS x 44 * scale factor of 2)
64240 (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 = 53 hops
TTL value is ok.
Timestamps (RFC1323) =
Timestamps (RFC1323) = ON
Note: Timestamps add 12 bytes to the TCP header of each packet, reducing the space available for useful data.
Selective Acknowledgements (RFC2018) = OFF
IP type of service field (RFC1349) = 00000000 (0)
::::::::::.. Download Stats ..::::::::::
Connection is:: 1426 Kbps about 1.4 Mbps (tested with 579 kB)
Download Speed is:: 174 kB/s
Tested From:: http://testmy.net (server2)
Test Time:: Sat Jan 28 17:36:52 CST 2006
Bottom Line:: 25X faster than 56K 1MB download in 5.89 sec
Diagnosis: Awesome! 20% + : 43.61 % faster than the average for host (80.36)
Validation Link:: http://testmy.net/stats/id-YPKZ02BH3
::::::::::.. Upload Stats ..::::::::::
Connection is:: 68 Kbps about 0.1 Mbps (tested with 97 kB)
Upload Speed is:: 8 kB/s
Tested From:: http://testmy.net (server2)
Test Time:: Sat Jan 28 17:37:34 CST 2006
Bottom Line:: 1X faster than 56K 1MB upload in 128 sec
Diagnosis: May need help : running at only 62.39 % of your hosts average (80.36)
Validation Link:: http://testmy.net/stats/id-F7LNMK31E