Ciao a tutti.
Ho lo stesso problema di molti di voi...
Ho la vecchia alice da 1,2 (1,5?) e teoricamente la conessione mi dice di essere online a 4,9... in realtà scarico file a 150 Kb/s al massimo...
questi sono i risultati del test, riuscite a darmi una mano?
grazie mille!!

TCP options string = 020405a00103030201010402
MTU = 1480
MTU is optimized for Windows XP PPoE DSL broadband. If not, consider raising MTU to 1500 for optimal throughput.
MSS = 1440
MSS is optimized for Windows XP PPPoE DSL broadband. If not, consider raising your MTU value.

Default Receive Window (RWIN) = 253440
RWIN Scaling (RFC1323) = 2 bits (scale factor of 4)
Unscaled Receive Window = 63360

RWIN is a multiple of MSS
Other values for RWIN that might work well with your current MTU/MSS:
506880 (MSS x 44 * scale factor of 8)
126720 (MSS x 44 * scale factor of 2)
63360 (MSS x 44)
bandwidth * delay product (Note this is not a speed test):

Your RcvWindow limits you to: 10137.6 kbps (1267.2 KBytes/s) @ 200ms
Your RcvWindow limits you to: 4055.04 kbps (506.88 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = ON
Time to live left = 56 hops

TTL value is ok.
Timestamps (RFC1323) = OFF
Selective Acknowledgements (RFC2018) = ON
IP type of service field (RFC1349) = 00000000 (0)