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View Full Version : How To Improve A GPRS/EDGE Dial-Up Connection



LouieChuckyMerry
01-12-10, 08:21 PM
Hello, and thanks in advance to anyone willing to help. I'm using a Nokia 3110 Classic (GPRS/EDGE capable; maximum speed stated is 460.8 Kbps) as a dial-up modem with a laptop running Windows 7 Home Premium. Windows Auto-Tuning is disabled. After a couple hours reading various articles and threads here, I used TCP Optimizer to change the default Windows settings, resulting in a speed improvement of roughly 40 Kbps (from about 180 Kbps to about 220 kbps) :thumb: . My TCP Analyzer results after the tweaks are:


SpeedGuide.net TCP Analyzer Results
Tested on: 01.12.2010 20:52
IP address: 115.67.xxx.xxx(proxy:64.255.180.51)
Client OS: Windows 7
TCP options string: 020405b40402080a906154650000000001030307
MSS: 1460
MTU: 1500
TCP Window: 5888 (NOT multiple of MSS)
RWIN Scaling: 7 bits (2^7=128)
Unscaled RWIN : 46
Recommended RWINs: 64240, 128480, 256960, 513920, 1027840
BDP limit (200ms): 236kbps (29KBytes/s)
BDP limit (500ms): 94kbps (12KBytes/s)
MTU Discovery: ON
TTL: 49
Timestamps: ON
SACKs: ON
IP ToS: 00000000 (0)


Unfortunately it seems that my provider fixes the RWIN at 5888 and also doesn't allow for turning off of Timestamps :mad: . Please, does anyone know any tricks for getting around these facts or, at the least, know of better settings in TCP Optimizer given my situation? Thanks again for your time.

akbarri
01-13-10, 07:19 AM
man, u r real tarzan :)

hope u could buy a 3G modem & create WWAN connection (not DUN/Dial Up)!

note: make sure u buy a modem that support WWAN profile.

LouieChuckyMerry
01-13-10, 06:51 PM
akbarri: the reason I posted my original question is because that's the setup I possess, and I was hoping that someone kind would help me tweak it to it's best possible speed. Do you have any suggestions other than buy something better? Thanks for any help.

akbarri
01-14-10, 06:16 AM
i know, what happen to u, happen to me also 3 years ago :)
the different is i use xp, so i could do some tweaking!
now u use Win7, nothing we can do! (limited tweaking)
sorry...

LouieChuckyMerry
01-14-10, 07:01 PM
That's a bummer. Even with Windows 7 Auto-Tuning disabled there's limited tweaking? Are there any Advanced Settings in TCP Optimizer that would suit my my GPRS/EDGE connection better? Any suggestions are welcome since I can always use the backup feature. Thanks again.