Topic: Need help with cablenut

[livewire94]

I installed Cablenut and am using the updated ccs file for winxp 3000/256.   According to Broadbandreports tweak test, my RWIN is too high.  It seems that they calculate Rwin differently than cablenut for some reason.  Cablenuts Rwin setting is 384000.  If I use Broadbandreports Rwin calculation method I come up with 40880.  Im confused as to which Rwin to go by.  I have a cablemodem with www.ptd.net which caps are 3000/256 and I am using WinXP SP2 all updated.  Here are my TCP/IP analyzer results:

TCP options string = 020405b40103030301010402
MTU = 1500
MTU is fully optimized for broadband.
MSS = 1460
Maximum useful data in each packet = 1460, which equals MSS.
Default Receive Window (RWIN) = 384000
RWIN Scaling (RFC1323) = 3 bits (scale factor of 6)
Unscaled Receive Window = 48000

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: 15360 kbps (1920 KBytes/s) @ 200ms
Your RcvWindow limits you to: 6144 kbps (768 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) = 00000000

Does anyone know what setting my Rwin should be?
Thank you

[mccoffee]

Ingore the analyzer xp sp2 changed soemthing  and now the analyzer is looking at the wrong value or zp sp2 is sending the wrong value when giving the resaults.

The vaule it's showing is default recive window is a afd parmeter  which is not rwin  

in xp pre sp2 it the analzyer looked at tcp window szie wich is your rwin

Your fine don't worry about that.