For sum reason my MTU keeps going down to 1446!! i dont know why... then i restart and my MTU is back to 1480 where it should be....but look......
TCP options string = 0204059201010402
MTU = 1466
MTU is not fully optimized for broadband. Consider increasing your MTU to 1500 for better throughput.
MSS = 1426
MSS is not fully optimized for broadband (although it might work well for slower connections). Consider increasing your MTU value.
Default Receive Window (RWIN) = 51840
RWIN Scaling (RFC1323) = 0 bits
Unscaled Receive Window = 51840
For optimum performance, consider changing RWIN to a multiple of MSS.
Other values for RWIN that might work well with your current MTU/MSS:
501952 (MSS x 44 * scale factor of 8)
250976 (MSS x 44 * scale factor of 4)
125488 (MSS x 44 * scale factor of 2)
62744 (MSS x 44)
bandwidth * delay product:
Your RcvWindow limits you to: 2073.6 kbps (259.2 KBytes/s) @ 200ms
Your RcvWindow limits you to: 829.44 kbps (103.68 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = ON
Time to live left = 54 hops
TTL value is ok.
Timestamps (RFC1323) = OFF
Selective Acknowledgements (RFC2018) = ON
IP type of service field (RFC1349) = 01011100
Precedence (priority) = 100 (flash override)
Delay = 1 (low delay)
Throughput = 1 (high throughput)
Reliability = 0 (normal reliability)
Cost = 1 (low cost)