Need tweak?

Get help and discuss anything related to tweaking your internet connection, as well as the different tools and registry patches on the site. TCP Optimizer settings and Analyzer results should be posted here.
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photo
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Posts: 8
Joined: Fri Sep 14, 2007 5:36 am

Need tweak?

Post by photo »

IPS 4000 / 256
XP Pro + PPPoE
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Image
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« SpeedGuide.net TCP Analyzer Results »

Tested on: 09.14.2007 12:00
IP address: 83.184.xx.xxx

TCP options string: 020405500103030201010402
MSS: 1360
MTU: 1400
TCP Window: 261360 (NOT multiple of MSS)
RWIN Scaling: 2
Unscaled RWIN : 65340
Reccomended RWINs: 65280, 130560, 261120, 522240
BDP limit (200ms): 10454kbps (1307KBytes/s)
BDP limit (500ms): 4182kbps (523KBytes/s)
MTU Discovery: ON
TTL: 48
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)

I set in the TCP Optimizer the MTU value at 1492 but then in TCP Analyzer is 1400.
What is the reason?
Thanks in advance. :-)
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trogers
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Posts: 12323
Joined: Wed Jan 26, 2005 11:14 pm
Location: Bangkok, Thailand

Post by trogers »

Are you using a router? If so, log into it and ensure MTU or MRU is set to 1500 or MSS to 1460. Save and reboot the router to take effect.
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photo
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Posts: 8
Joined: Fri Sep 14, 2007 5:36 am

Post by photo »

« SpeedGuide.net TCP Analyzer Results »
Tested on: 09.15.2007 04:50
IP address: 83.184.xx.xxx
Image

TCP options string: 020405ac0103030201010402
MSS: 1452
MTU: 1492
TCP Window: 261360 (multiple of MSS)
RWIN Scaling: 2
Unscaled RWIN : 65340
Reccomended RWINs: 63888, 127776, 255552, 511104
BDP limit (200ms): 10454kbps (1307KBytes/s)
BDP limit (500ms): 4182kbps (523KBytes/s)
MTU Discovery: ON
TTL: 48
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)

I changed in my Modem Ethernet PPPoE the MTU and the MRU value to 1492 like in TCP Optimizer for PPPoE. (with 1500 does'nt work)
Is possible improve something in my connection?
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trogers
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Posts: 12323
Joined: Wed Jan 26, 2005 11:14 pm
Location: Bangkok, Thailand

Post by trogers »

Try the following with TCP Optimizer:

General Settings tab:
Custom settings - check
Modify All Network Adapters - check
network adapter selection - your NIC
MTU 1492
TTL - 64
TCP Receive Window - 127776
MTU Discovery - Yes
Black Hole Detect - No
Selective Acks - Yes
Max Duplicate ACKs - 2
TCP 1323 Options:
Windows Scaling - checked
Timestamps - uncheck

Advanced Settings tab:
Max Connections per Server - 10
Max Connections per 1.0 Server - 20
LocalPriority - 1
Host Priority - 1
DNSPriority - 1
NetbtPriority - 1
Lan Browsing speedup - optimized
QoS: NonBestEffortLimit - 0
ToS: DisableUserTOSSetting - 0
ToS: DefaultTOSValue - 80
MaxNegativeCacheTtl - 0
NetFailureCacheTime - 0
NegativeSOACache Time - 0
LAN Request Buffer Size - 32768
Then select "Apply Changes" and reboot to take effect
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photo
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Posts: 8
Joined: Fri Sep 14, 2007 5:36 am

Post by photo »

Image

« SpeedGuide.net TCP Analyzer Results »
Tested on: 09.16.2007 03:37
IP address: 83.190.xxx.xx

TCP options string: 020405ac0103030101010402
MSS: 1452
MTU: 1492
TCP Window: 127776 (multiple of MSS)
RWIN Scaling: 1
Unscaled RWIN : 63888
Reccomended RWINs: 63888, 127776, 255552, 511104
BDP limit (200ms): 5111kbps (639KBytes/s)
BDP limit (500ms): 2044kbps (256KBytes/s)
MTU Discovery: ON
TTL: 48
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)
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