SpeedGuide.net TCP/IP Analyzer
TCP properties for IP = 69.123.140.103 ()
Browser/OS = Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.

Gecko/20051107 Firefox/1.5
Notes: Read the Analyzer FAQ if the above is not your IP address.
TCP options string = 020405b40103030101010402
MTU = 1500
MTU is fully optimized for broadband.
MSS = 1460
Maximum useful data in each packet = 1460, which equals MSS.
Default Receive Window (RWIN) = 122640
RWIN Scaling (RFC1323) = 1 bits (scale factor of 2)
Unscaled Receive Window = 61320
RWIN is 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: 4905.6 Kbps (613.2 KBytes/s) @ 200ms
Your RcvWindow limits you to: 1962.24 Kbps (245.28 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = ON
Time to live left = 121 hops
TTL value is ok.
Timestamps (RFC1323) = OFF
Selective Acknowledgements (RFC2018) = ON
IP type of service field (RFC1349) = 00000000 (0)