Can't change MTU from 1440

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X-Nemesis
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Posts: 576
Joined: Thu Nov 23, 2000 12:00 am
Location: Kitchener, ON, Canada

Can't change MTU from 1440

Post by X-Nemesis »

Here's my Analyzer results, what should I change? I don't see where in TCP Optimizer I can change the TCP window or Rwin Value. Strangely when I set "All Adapters" to be modified and use optimal settings for an 18Mbs connection, the Analyzer still gives me the same results as below.

« SpeedGuide.net TCP Analyzer Results »
Tested on: 02.21.2011 21:13
IP address: 69.166.xx.xxx
Client OS: Windows 7

TCP options string: 020405780103030201010402
MSS: 1400
MTU: 1440
TCP Window: 65800 (multiple of MSS)
RWIN Scaling: 2 bits (2^2=4)
Unscaled RWIN : 16450
Recommended RWINs: 64400, 128800, 257600, 515200, 1030400
BDP limit (200ms): 2632kbps (329KBytes/s)
BDP limit (500ms): 1053kbps (132KBytes/s)
MTU Discovery: ON
TTL: 54
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)
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Rollingstone
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Joined: Wed Jan 23, 2008 5:50 am
Location: HoChiMinh, Vietnam

Post by Rollingstone »

Client OS: Windows 7
In Win 7 , you cant change RWIN !
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