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Trying to Speed up my downloads

January 22, 2018, 12:33 pm
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« SpeedGuide.net TCP Analyzer Results »
Tested on: 2018.01.22 15:20
IP address: 24.10.xx.xx
Client OS/browser: Windows 7 (Internet Explorer 11.0)

TCP options string: 020405b80103030801010402
MSS: 1464
MTU: 1504
TCP Window: 65536 (not multiple of MSS)
RWIN Scaling: 8 bits (2^8=256)
Unscaled RWIN : 256
Recommended RWINs: 64416, 128832, 257664, 515328, 1030656
BDP limit (200ms): 2621kbps (328KBytes/s)
BDP limit (500ms): 1049kbps (131KBytes/s)
MTU Discovery: ON
TTL: 52
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)

Ive changed a few things around already under command prompt that were in the windows 7 tweaks but my downloads seem to shoot up to like 3 4 or 500 kbps than drop down to anywhere from 25- 50 kbps and stay right there around 25. I was also wondering what is the best browser to use in SpeedGuide.net eyes? Ive used chrome, internet explorer, firefox and opera. From what I noticed chrome seemed to be the fastest and browsing but downloads were about same as usual. Also im on a 90 Mbps Comcast connection just checked it and got this.« SpeedGuide.net Speed Test Results »
12.78 Mbit/s down ↓
5.98 Mbit/s up ↑
ping: 126ms jitter: 12ms

Test date: 2018.01.22 15:31 EST
IP Address: 24.10.xx.xx
Location: Fair Oaks, CA, US
Provider: ca.comcast.net

mirror: https://backyardengineering.com/ (Fremont, CA USA)
Test Link: https://www.speedguide.net/speedtest...est=1516653082

Any help is greatly appreciated thanks for your time.
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UDP Packet.Win10.RegistryLocation

January 26, 2018, 7:45 pm
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Hey there. Was recently reading the Advanced Tweaks section and I came across the UDP Packet size section and decided to take a look in the registry (windows 10 latest as of Jan 18') and I didn't find the registry location listed on the Advanced Tweaks UDP section; HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\DNS\Parameters. Is this not used in Windows 10? Or has the location changed? Also, what does FastSendDatagramThreashold, & FastCopyReceiveThreshold do? Does it reduce latency? Does it benefit gaming? Do either the UDP or the Threshold settings help reduce latency, or increase granularity? Thanks! :)
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Quick question.

January 30, 2018, 5:06 pm
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This may have been asked before, but i didn't find it using the search function.
I was trying to find something that'll or possibly could help me reduce my ping in a certain mmo.
Now im here, read some mini guide/article about what to set up in the optimizer.

Which states that i must choose the optimal settings, postpone restart, then proceed to advanced settings.
Now, the advanced tab is grey, unless i choose custom, which changes a bunch of settings i have previously applyed with the optimal settings.
Am i doing something wrong?

Thanks for the answers in advance!
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Mtu = hexadecimal or decimal value ??

February 4, 2018, 7:37 pm
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Excuse Philip or other people can also contribute if they wish, my question is =

- A decimal or hexadecimal value must be added to the value of DWORD = MTU?

Examples:

1) - MTU = 1500 ---> Hexadecimal

or

2) - MTU = 5dc -----> Decimal

So what would be the correct way to add value to the MTU?
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tcp optimizer freezing

February 7, 2018, 4:59 am
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hi,
never ever had I problems with tcp. but this time when ever I click on apply nothing happens and tcp optimizer just freezes instantly. need to end tcp in task manager/ nothing happens after reboot.

latest up2date win 10 new formatted. ofc started as admin.

side note: I used tcp before without any problems but 2 weeks later cant use it anymore.

any tipps?

thank you!
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Download Dips

March 3, 2018, 4:44 pm
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Hi Philip,

I need your opinion on this:

I'm using Vypr VPN. When downloading large files I get dips to almost 0 kbs for less than a second for every couple of minutes. Is this a form of bandwidth throttling from my ISP or just buffer issues? If it's the latter any work around?

My specs:
1. Windows 10 Pro x64
2. Intel NIC
3. Optimized by TCP Optimizer
4. NIC is optimized based on the recommendation of this iste

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NIC Throughput

March 12, 2018, 8:53 pm
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Hi Philip!

Under your NIC optimization recommendation, I have noticed that it is geared towards minimizing latency. How about “throughput”. What would be a good values for its parameters?

Thanks a lot
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Just want to mention my gratitude for the "Optimizer!"

April 22, 2018, 7:55 am
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Just amazing! This is seriously good stuff. W10 x64 with SSD! wired, went from 223.6 to 264.4. Wireless on $150 laptop W10, went from 21.98 to 59.20! Thank you TCP! Again, just amazing work!
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Changes from 4.0.6 to 4.0.7

April 22, 2018, 4:04 pm
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I had currently setup TCPoptimizer using version 4.0.6.0.

I noticed you guys released a new version with some changes "Updated Congestion Control Provider command, added "CUBIC" and "NewReno" algorithms introduced with Windows 10 Creators Update"
Now I fired up 4.0.7.0 just to see and noticed the Congestion Control Provider values changed to CUBIC.
Where version 4.0.6.0 shows blank but if you export current values 4.0.6.0 has CongestionProvider=-1 and 4.0.7.0 shows CongestionProvider=5

This is w/o changing anything, so I guess the best solution would be to use 4.0.6.0 and set it back to windows default and then use 4.0.7.0 to optimize.

But the main question is it really worth redoing, are the changes major?
I am on latest win10 1709.
Edit: I just checked "netsh int tcp show global" and it says add on Congestion Control Provider is default, I could of sworn I used optimize setting which is ctcp
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Poor performance with iperf3 and OpenVPN under Windows 10

April 23, 2018, 8:45 am
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Hi to everyone.

As the title says, i'm doing some tests with OpenVPN and a VPS (Ubuntu Linux version 16 LTS) with 1gigabit port (both directions). My ISP connection has around 160Mbit in down and 20Mbit in up.

If i launch a speedtest while the VPN is active from my client (Windows 10 1803 build 17133.1) i have very poor performance: at the beginning of my tests i was reaching a super slow speed: about 20mbit in down. After some research and tweaking with openvpn configurations i managed to reach about 40 mbit in down which is still not enough. There is absolutely something wrong so i continued with experiments: i decided to give a try to the connection between me and the vps without going through the vpn. In this scenario the result with iperf3 is super clear: the connection between me and the vps is capped at around 50mbit. After some other tests and research, i got a doubt and i decided to try everything under a linux distro. So i ran an ubuntu live session on the same pc client i was using before and, big surprise, everything work as expected: i can reach max speed (around 160Mbit) in both iperf3 and openvpn. So, finally, i realized that the problem is something under Windows 10 indeed. I already tried with different settings of Autotuning level under the tcp/ip settings with no luck: the max speed i can reach is always 50mbit. The strange thing is that if i try to download something else from the vps (with chrome for example with http) i can get full speed instead: the only problems seems to be with openvpn and iperf and seem to be connected. Any clue about this? Thank you!
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TcpInitialRTT

May 1, 2018, 4:46 am
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Hello!
i want to know what is the best value for TcpInitialRTT (i'm mean for gaming)?
i hope someone will help me :D
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Upload speed problems with the new ISP (affects only Win10 1607 and newer)

May 28, 2018, 5:23 pm
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Hello.
I'm facing a very strange problem with upload speed to certain servers. I've wrote full details about this problem at: https://superuser.com/questions/1326...-1607-and-newe

After hours of testing and installations of different Windows 10 versions I detected that the problem started with version 1607 (Anniversary Update).
Short problem description:
After some seconds, the upload speed decreases from 34Mb/s to ~5Mb/s. It affects only certain servers. For most services like Google Drive, OneDrive, YouTube it works fine.
It affects even VPN connections. This means: even when I can get full 34Mb/s on speed tests and uploads to some services - I still get low speed to certain servers.
I tested on both: wireless, wired (Ethernet) connections. I also tested 2 routers and my mobile phone as router.
It seems like the "autotuninglevel" doesn't work correctly, because when I set it to "disabled" I was getting low speeds from start (without the boost).
I installed Windows 8.1 on a different HDD and I didn't experience this problem when I was transferring a big file to my VPS.
Then I tested all Windows 10 versions (starting from the newest one), and detected that the last version where I get full upload speeds is: 1511. I tested on both network drivers: windows default, and the newest available for my Wi-Fi/Ethernet.

I started reading Windows 10 Anniversary Update changes, and I found: https://blogs.technet.microsoft.com/...s-server-2016/
It seems like:
1. "Initial Congestion Window" was changed to "10".
Unfortunately I can't set it to lower value. When I type: "PowerShell.exe Set-NetTCPSetting -SettingName internet -InitialCongestionWindow 4" I get the following output:
Code:
Set-NetTCPSetting : Property InitialCongestionWindow is read-only
At line:1 char:1
+ Set-NetTCPSetting -SettingName internet -InitialCongestionWindow 4
Is there any work-around to change this value?
2. "Tail Loss Probe (TLP)".
I don't know how to disable it for tests. At the website I posted it says:
Quote:
Configuration: The TCP templates have the additional setting called “taillossprobe”. On client SKU switching to compat template turns TLP off. On both client and server SKUs, the Internet template has it enabled by default. The InternetCustom and DatacenterCustom templates can be used for more fine grained control for specific connections.
But I have no idea where exactly it's configured.
3. "Recent ACKnowledgement (RACK)".
Same problem as mentioned at ad. 2. I don't know where to disable this option
4. "TCP Fast Open"
Disabling it with "Netsh int tcp set global fastopen=disabled" doesn't help, so I re-enabled it.
5. "Windows Low Extra Delay BAckground Transport"
This option should be disabled by default, so not needed to disable it.

So for now I need to test changing TLP, RACK and ICW, but I don't know any methods for it.

I would very appreciate any help in resolving this issue. I can also make additional tests if needed.
Just to clarity: I have tried different TCPOptimizer settings (including CongestionProvider changes), but nothing fixed it.

Best regards.
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Looking for some help with edge router pro setup hack

May 29, 2018, 1:49 am
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Okay so my networks been hacked, (please son’t Ask how I know it’s a long story and I know), I had a edge router pro set up by a hacker and he had all known bad ports tunnels setting etc blocked, and it worked. However he became compromised and obtained secret company formulas in exchange for router passwords and skill set. All this stuff is above my head and I have spent almost two years dealing with this not to mention tens of thousands of dollars and I’m in a bad spot and broke at the moment. Phones, computers, anything digital is compromised and I need to know if there is somewhere I can download the configuration I need to set it up like it was before the compromise and take back my network. Any help would be appreciated and sorry but I am so burnt out on this stuff and I really don’t get 90% of it. Thanks in advance.

Oh and what I’m working with if you need to know:
Frontier Fios router
Google onhubs
3 network switches
Ubiquity edge router pro 8 port
Windows 10 pc
MacBook
No computer is working all have burnt out tho.
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NAT Acceleration

June 1, 2018, 4:58 pm
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Hi Philip!

I'm using Asus 5300 (merlin) router with NAT acceleration enabled. As it is explained in your article, when this feature is enabled Tcp/Ip stack flow control is bypassed. I just would like to confirm if it make sense to turn on the flow control of the NIC in order to manage the packets? If you don't, what happens to packet management? This might cause packet drops and poor throughput right?
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TCP Optimizer issue help [Issue Self-Resolved]

June 10, 2018, 12:15 am
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Used this program and it destroyed my ability to connect to the internet... Restoring the backup I made of my original settings didn't fix the issue and neither did using a restore point I'd set right before using the program.

Please, somebody help me fix this issue somehow! What all information would I need to post in a new thread?
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Windows 10 - Auto Tuning and Bufferbloat?

July 6, 2018, 7:42 am
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Hi,


So i recently learned about Bufferbloat.
I kinda knew the problem with latency going haywire when you are downloading or uploadoing (usually uploading), and thought that was simply cause you used up your line or something.
But apparently it seems that's not always the case.

So i played around on tests with my router to no avail, then i connected to my NIC directly to no avail, settings didn't do anything noteworthy.
What did changes was the Auto Tuning, disabling that fixed it (or at least improved it a lot).

But then you lose larger window sized than 64kb for the TCP which i guess sucks.
But to me it seems weirth that this is the issue, i think rather than it's the algorithm, which i don't really understand?
I thought the Window Size was decided by both parts agreeing on it with som ACK thing, not via some guessing work done by the OS?


Windows 10 1803 x64
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OpenVPN Buffers

July 12, 2018, 3:43 pm
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Hi Philip!

OpenVPN has parameters called "sndbuf" and "rcdbuf". They are actually buffers. Should this be considered analogous to Windows' "Tcpreceive and TCPsend Window"?

If so is there a way to scientifically compute their optimum size?
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MSS Size

July 21, 2018, 3:45 pm
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Philip,

Just would like to confirm:

TCP Connection

MSS = MTU - (IP header + TCP Header)

UDP Connection

MSS = MTU - (IP header + UDP Header)

Why is it Ethernet Header of 18 bytes is not considered?
Are there any other variables to consider?
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Odd Speed

August 15, 2018, 11:42 pm
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Hi Philip!

My ISP has my speed bursting up to 500Mbps. When I'm using VPN my speed is either up to 50Mbps or up to 160Mbps. Most of the time it's the former.

My work around in order to get the higher speed, 160Mbps, is to disconnect and reconnect my VPN until such time I get that speed. This process sometimes takes so long or no success at all. In that case you'll be stuck at 50Mbps. Any thoughts on why this is happening? Is there some setting that I could tweak?

Thanks

Mark
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Help removing adapter settings

August 23, 2018, 4:43 pm
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In Windows 10, since 1803 release you can't actually uninstall protocols or network drivers. This is annoying because in previous versions I was able to delete multiplexor, Microsoft Network client, shared files and so on. This kind of thing I never used and made my network have more responsiveness and less traffic. As far as I have read, Microsoft disabled the ability to mess with those settings because "some clients" ( as they state ) called for support after messing with multiplexor. I must say, I have always run without any of that crap and never get a problem.

Any help would be appreciated.
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