help me pls. i can't change the MTU to 1500 it always 1400..

[zaxcal]

« SpeedGuide.net TCP Analyzer Results »
Tested on: 07.11.2010 03:58
IP address: 110.54.xxx.xxx
Client OS: Windows XP

TCP options string: 020405500103030101010402
MSS: 1360
MTU: 1400
TCP Window: 128480 (NOT multiple of MSS)
RWIN Scaling: 1 bits (2^1=2)
Unscaled RWIN : 64240
Recommended RWINs: 65280, 130560, 261120, 522240, 1044480
BDP limit (200ms): 5139kbps (642KBytes/s)
BDP limit (500ms): 2056kbps (257KBytes/s)
MTU Discovery: ON
TTL: 44
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)


>> i followed the instruction for the recommended settings.. it always shows 1400 of MTU instead of 1500.. i set it up with TCP optimizer 3.0.


here is my speedtest


my ISP offers 1mbps... of bandwidth...

anyone can help??

[akbarri]

MTU was overwrite by ISP.
u cannot set MTU more than 1400.

@TCPO v3
pick "Custom" Settings
Set MTU=1400
Set Connection Speed=1Mbps

[zaxcal]

sir akbarri, can you give a recommended settings for TCP optimizer regarding to the result of the analyzer?.. the RWIN, TCP window, TTL..

[akbarri]

TCP Optimizer Settings:
General Settings tab:
Custom settings - check
Modify All Network Adapters - check
network adapter selection - your NIC
MTU - 1400
TTL - 64
TCP Receive Window - 130560
MTU Discovery - Yes
Black Hole Detect - No
Selective Acks - Yes
Max Duplicate ACKs - 2
TCP 1323 Options:
Windows Scaling - check
Timestamps - uncheck

Advanced Settings tab:
Max Connections per Server - 8
Max Connections per 1.0 Server - 8
LocalPriority - 5
Host Priority - 6
DNSPriority - 7
NetbtPriority - 8
Lan Browsing speedup - optimized
QoS: NonBestEffortLimit - 0
ToS: DisableUserTOSSetting - 0
ToS: DefaultTOSValue - 0
MaxNegativeCacheTtl - 0
NetFailureCacheTime - 0
NegativeSOACache Time - 0
LAN Request Buffer Size - 32768

Gaming Tweak
TcpAckFrequency - default
TCPNoDelay - default
TcpDelAckTicks - default