Any way to use TCP Optimizer to adjust TCP Window on Win 11 ?

[rb002]

Good Morning.

Anyone run into this before ? I'm currently running this setup with TCP Optimizer, and I'm having a hard time trying to change my TCP Window to get increase throughput. I'm hearing that you can't adjust the TCP Window in Win 11.

Device name LAPTOP-0M1GKR3V
Processor Intel(R) Celeron(R) N4020 CPU @ 1.10GHz 1.10 GHz
Installed RAM 4.00 GB (3.81 GB usable)
Device ID 22C71E67-D14B-488A-BFB3-E7FC55581513
Product ID 00356-02696-80075-AAOEM
System type 64-bit operating system, x64-based processor
Pen and touch No pen or touch input is available for this display


Here is my results when I use Speedguide TCP Analyzer...

« SpeedGuide.net TCP Analyzer Results »
Tested on: 2024.01.23 08:03
IP address: 24.138.xx.xx
Client OS/browser: Windows 10 (Chrome 120.0.0.0)

TCP options string: 020405b40103030801010402
MSS: 1460
MTU: 1500
TCP Window: 131328 (not multiple of MSS)
RWIN Scaling: 8 bits (2^8=256)
Unscaled RWIN : 513
Recommended RWINs: 64240, 128480, 256960, 513920, 1027840
BDP limit (200ms): 525 Mbps (53 Megabytes/s)
BDP limit (500ms): 210 Mbps (21 Megabytes/s)
MTU Discovery: ON
TTL: 52
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)


Thanks

[Philip]

Hello,

There is only small incremental difference between the Windows 10 and 11 TCP/IP implementation, you can apply the "optimal" TCP Optimizer settings under Windows 11 as well.

[The_Doctor]

I applied the "optimal" settings to Win 11 via TCP Optimizer 4.1.1 and rebooted.

When I look at "Current" settings in TCP Optimizer, the following fields are blank:
TCP Window Auto-tuning
Congestion Control Provider
RSS
RSC
TTL
ECN Capability
TCP Chimney Offload
TCP 1323 Timestamps

Max SYN Retransmissions
NonSack RTT Resiliency
Initial RTO is 0
Min RTO is 0

Is this a result of Powershell not reading the settings?

Regards

[Philip]

Most likely.
You can try to read the settings in PowerShell manually and see what shows up, they're documented here: https://www.speedguide.net/articles/win ... weaks-5077

[The_Doctor]

Thanks Philip. I found the log made by the app and saw a lot of Powershell errors, so I did check the settings in Powershell manually.
Most of the settings are correct as per the "Optimized" settings in the app.

In case it helps, here is the log: (it says Win10, but I am using Win11 23H2)
I could not get any of the Get-Net commands to work manually either. netsh exposed most of the settings.

Cheers

Windows 10 Pro (64-bit) Build:22631 10.2 15.03.2024 13:35:24
!!!-------------------!!!
netsh int tcp show supplemental

The TCP global default template is internet

TCP Supplemental Parameters
----------------------------------------------
Minimum RTO (msec) : 300
Initial Congestion Window (MSS) : 10
Congestion Control Provider : cubic
Enable Congestion Window Restart : disabled
Delayed ACK timeout (msec) : 40
Delayed ACK frequency : 2
Enable RACK : enabled
Enable Tail Loss Probe : enabled

Please use the 'netsh int tcp show supplementalports' and
'netsh int tcp show supplementalsubnets' commands to view active filters.



!!!-------------------!!!
netsh int ip show interfaces

Idx Met MTU State Name
--- ---------- ---------- ------------ ---------------------------
1 75 4294967295 connected Loopback Pseudo-Interface 1
16 25 1500 connected Ethernet
8 65 1500 disconnected Bluetooth Network Connection
20 25 1500 disconnected Ethernet 2



!!!-------------------!!!
PowerShell.exe Get-NetAdapterLso -Name '*'
Get-NetAdapterLso : Invalid class
At line:1 char:1
+ Get-NetAdapterLso -Name '*'
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : MetadataError: (MSFT_NetAdapterLsoSettingData:ROOT/StandardCi...rLsoSettingData) [Get-Ne
tAdapterLso], CimException
+ FullyQualifiedErrorId : HRESULT 0x80041010,Get-NetAdapterLso



!!!-------------------!!!
PowerShell.exe Get-NetAdapterChecksumOffload '*'
Get-NetAdapterChecksumOffload : Invalid class
At line:1 char:1
+ Get-NetAdapterChecksumOffload '*'
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : MetadataError: (MSFT_NetAdapter...loadSettingData:ROOT/StandardCi...loadSettingData) [Ge
t-NetAdapterChecksumOffload], CimException
+ FullyQualifiedErrorId : HRESULT 0x80041010,Get-NetAdapterChecksumOffload



!!!-------------------!!!
PowerShell.exe Get-NetTCPSetting -SettingName internet
Get-NetTCPSetting : Invalid class
At line:1 char:1
+ Get-NetTCPSetting -SettingName internet
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : MetadataError: (MSFT_NetTCPSetting:ROOT/StandardCimv2/MSFT_NetTCPSetting) [Get-NetTCPSet
ting], CimException
+ FullyQualifiedErrorId : HRESULT 0x80041010,Get-NetTCPSetting



!!!-------------------!!!
netsh int tcp show global
Querying active state...

TCP Global Parameters
----------------------------------------------
Receive-Side Scaling State : enabled
Receive Window Auto-Tuning Level : normal
Add-On Congestion Control Provider : default
ECN Capability : disabled
RFC 1323 Timestamps : disabled
Initial RTO : 2000
Receive Segment Coalescing State : disabled
Non Sack Rtt Resiliency : disabled
Max SYN Retransmissions : 2
Fast Open : enabled
Fast Open Fallback : enabled
HyStart : enabled
Proportional Rate Reduction : enabled
Pacing Profile : off



!!!-------------------!!!
PowerShell.exe Get-NetOffloadGlobalSetting
Get-NetOffloadGlobalSetting : Invalid class
At line:1 char:1
+ Get-NetOffloadGlobalSetting
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : MetadataError: (MSFT_NetOffloadGlobalSetting:ROOT/StandardCi...adGlobalSetting) [Get-Net
OffloadGlobalSetting], CimException
+ FullyQualifiedErrorId : HRESULT 0x80041010,Get-NetOffloadGlobalSetting

[MadMackz]

Might I suggest copying my settings and Checking your results, I have seen a nice boost to my network from them
https://ibb.co/rsDV0fK
https://ibb.co/CvpxjXC

(sorry couldn't figure out how to add an image directly)

Please let me know if it helped or if you have any suggestions I might make. **Im in Canada using telus Fibre gigabyte plan

[Philip]

The_Doctor, thanks for the log, will look through that. Yeah, the OS identification is a bit outdated, shouldn't affect functionality.

Hi MadMackz, welcome to SG. Settings look good, especially if you got a decent boost out of it