SG Broadband Community

Strongly recommand you not to post your test or Question in other people's threads. Start one and PLEASE, only ONE topic about your problems and such.

I need to know your system specs in order to give you more advance help, so some info would be nice, Ram and CPU speed, DSL/Cable..

sorry i didn't know the rule.

well here you go.


Road Runner

specs are in the signature.

TCP options string = 020405b40103030201010402

MTU = 1500
MTU is fully optimized for broadband.

MSS = 1460
Maximum useful data in each packet = 1460, which is equal to MSS.

Default Receive Window (RWIN) = 256960
RWIN Scaling (RFC1323) = 2 bits
Unscaled Receive Window = 64240
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 8)
128480 (MSS x 44 * scale factor of 2)
64240 (MSS x 44)

bandwidth * delay product:
Your RcvWindow limits you to: 10278.4 kbps (1284.8 KBytes/s) @ 200ms
Your RcvWindow limits you to: 4111.36 kbps (513.92 KBytes/s) @ 500ms

MTU Discovery (RFC1191) = ON

Time to live left = 50 hops
TTL value is ok.

Timestamps (RFC1323) = OFF

Selective Acknowledgements (RFC2018) = ON

IP type of service field (RFC1349)= 00000000

Originally posted by Lobo
For Win 9x bring up Cablenuts adjuster inside icon on desktop in box that says Cablenut,click on adjuster, in box that says DefaultRvcWindow take out number that is in there and put in one of these, 1 at a time, try: 51100, 554800, 560640, 575232, 578160


Leave GlobalMaxTcpWindowSize blank
You do not have to show me but check analyzer here at SG to make sure RWIN is in, you will see number right after (RWIN) on analyzer
At bottom click save to registry, and REBOOT each time you change value in adjuster or it will not work.Click on tools at top of IE, internet options, delete files and offline files (This is safe, temp files) and click on clear history after EVERY test Quick speed test here
Speedtest may open another browser, so check taskbar and close other one, no other programs should be running, No AIM, ICQ, Virus scanner, Firewall, nothing
Once you find fast number for you, you want to save it, on file at top of adjuster click on that, save custom settings, put RWIN size in as name and click on save, now if you ever want these settins back, click on file, open custom settings file, and click on RWIN number, then click on save to registry at bottom, and REBOOT, your done. How to do real dowwnload test on help thread below in signature. This is all I recommend, if anyone else jumps in with something else, good luck, but it did not come from me.



SAVE YOUR SETTING'S So we
do not have to do this again, directions above Good day and good luck.

Follow through the directions.