Issues in TCP Optimizer 4.0.2: Optimal values not not "stick"

MaKi · Post by **MaKi** » Sun Oct 18, 2015 3:32 am

Choosing Optimal -> Reboot -> Choosing Optimal again, every time says there are differences. Then, doing an export of the Current settings and comparing them to an export of the Optimal settings gives these differences - first value is Current, second is Optimal:

[netsh]
AutoTuningLevelLocal=4
AutoTuningLevelLocal=3
EcnCapability=2
EcnCapability=0
Chimney=2
Chimney=1
EnableDCA=2
EnableDCA=1

[System\CurrentControlSet\Services\Tcpip\QoS]
Do not use NLA_SEL=1
Do not use NLA_SEL=0

[SOFTWARE\Microsoft\Windows NT\CurrentVersion\Multimedia\SystemProfile]
SystemResponsiveness_SEL=10
SystemResponsiveness_SEL=0

[Wi-Fi Connection]
NetAdapterRsc=2
NetAdapterRsc=1
Large Send Offload=-5
Large Send Offload=2
Checksum Offload=-5
Checksum Offload=1

[Ethernet Connection]
NetAdapterRsc=2
NetAdapterRsc=1
Checksum Offload=-5
Checksum Offload=1

Modify All Network Adapters is ticked and Large Send Offload does not work on my WiFi-adapter, so I can understand that.
But for the Ethernet Connection and the other sections/values I don't have a clue...

Tia,

MaKi

Post by **Philip** » Fri Oct 23, 2015 9:51 am

I will look over those in detail to make sure Windows is not resetting anything after reboot, thanks for the info.

Keep in mind that some may have the same "default/optimal" value, and some may not be read at program start (NIC-specific).

For "Checksum Offload" and LSO, the value of -5 means "no change"

For those:

[System\CurrentControlSet\Services\Tcpip\QoS]
Do not use NLA_SEL=1
Do not use NLA_SEL=0

[SOFTWARE\Microsoft\Windows NT\CurrentVersion\Multimedia\SystemProfile]
SystemResponsiveness_SEL=10
SystemResponsiveness_SEL=0

Those are just the currently selected values in the program (visually). They are not the actual registry values. This is true for anything with "_SEL" in the export files.

Note that you will have two values for each, i.e.
SystemResponsiveness=nnn (actual registry value that is read currently, provided you are exporting current settings)
SystemResponsiveness_SEL=nn (just visually what is currently selected in the combo box)

bjoswald · Post by **bjoswald** » Fri Nov 06, 2015 7:33 pm

I have a similar issue with Windows 10. I click Optimal and Apply, and then find the following values blank.

RSS
RSC
DCA
ECN Capability
Checksum Offloading
TCP Chimney Offload

Program run as Administrator and I reboot between each test.

Post by **Philip** » Fri Nov 06, 2015 9:54 pm

The values that are "blank" are not read at program start (since they may be set differently for different network adapters on the system).

We changed the TCP Optimizer behavior with version 4.0.3 to show blanks instead of "default" for values that are not read at program start.

bjoswald · Post by **bjoswald** » Sat Nov 07, 2015 1:43 pm

Philip wrote:The values that are "blank" are not read at program start (since they may be set differently for different network adapters on the system).

We changed the TCP Optimizer behavior with version 4.0.3 to show blanks instead of "default" for values that are not read at program start.

Fair enough, but why did I have to enable them manually using PowerShell?

Post by **Philip** » Sun Nov 08, 2015 12:03 am

Are you saying they are not applied by the Optimizer, did you check ? Any difference before or after reboot ? The program applies the same PowerShell cmdlets that are listed in the "Apply" screen.

bjoswald · Post by **bjoswald** » Sun Nov 08, 2015 1:09 pm

I am saying just that: I had to use PowerShell to enable the missing values. It could be an issue on my end, however, because I've used this little program for years without any issues. I just reset Windows 10, so I'll try optimizing again and overlook the "blank" values for now.

Post by **Philip** » Mon Nov 09, 2015 7:34 pm

If you reenter the same command, PowerShell will run it every time and return "Ok". That by itself is not an indication that the command wasn't executed before, or that it didn't stick. You'd have to get the information out using the cmdlets described in our article here: http://www.speedguide.net/articles/wind ... weaks-5077

For example, to see the current RSS value for each RSS-capable network adapter, you'd have to use:
Get-NetAdapterRss -Name *

You'd have to do something similar for each value you're testing If you notice something that is not properly applied by the Optimizer, but works in PowerShell, we definitely want to know. Note that not all NICs support all settings.