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Still using XP for that ?

What speed are you paying for ?

Sorry, RWIN cannot be changed because of Win 7 RWIN auto-tuning !

Have you tried wired netbook ? Then check speed fluctuation !

How about IDM speed ?

Log into your modem/router , set MTU to 1492, MSS 1452 (if any) save then post new TCP ANalyzer !

Need your tracert & HijackThis log !

Just apply Optimal in TCP Optimizer !

Need your TCP Analyzer, tracert, HijackThis log

Need your tracert & HIjackThis log

Need your tracert & HijackThis !

Need your TCP Analyzer !

Because of Vista TCP Auto-tuning ! Just apply Optimal in TCP Optimizer !

We need tracert, TCP Analyzer & HijackThis log !

4G nature ? ISP blocking ?

Try : http://forums.speedguide.net/showthread.php?236227-TCP-Optimizer-Tips-For-BEGINNERS

Sorry, upload cant be tweaked !

Try : http://forums.speedguide.net/showthread.php?236227-TCP-Optimizer-Tips-For-BEGINNERS

Log into your modem/router , set MTU to 1492, MSS 1452 (if any), save then post new TCP Analyzer !

Post your tracert !

Have you tried MSDN version ?

What's site ?

What's speed are you paying for ? 3.6 or 7.2 ?

Download = 1.5Mbps speed /8 = 1500/8

It's normal !

Try the following with TCP Optimizer:

General Settings tab:
Custom settings - check
Modify All Network Adapters - check
network adapter selection - your NIC
MTU - 1500
TTL - 64
Checksum...

Log into your modem/router then set MTU to 1492, MSS 1452 , save & post new TCP Analyzer report !

MTU Limitation : by ISP or Modem MTU & MSS (MSS = MTU -40) configuration & firmware

RWIN : Chrome based browser's TCP Window always show 65536 in XP !

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
Checksum...

Have you got lastest Driver ?

Just apply Optimal in TCP Optimizer !