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  1.    06 Jul 2017 #11
    Join Date : Mar 2017
    Posts : 5,844
    64-bit Windows 10 Pro

    Click image for larger version. 

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    The speed above is the same as it was with Windows 7. If I remove my router the Download will jump to 110
      My ComputerSystem Spec
  2.    06 Jul 2017 #12
    Join Date : Aug 2015
    Raleigh, NC, USA
    Posts : 1,614
    Windows 10 Pro x64

    I've experienced huge slowdowns with Windows 10, but likely not the same situation the OP has. When I install new Insider Preview builds, Microsoft insists on replacing my TP-Link T4UH wifi adapter driver with a newer one they got somewhere (it's not available on the adapter manufacturer's site). It slows my usual 70Mb download to less than 2Mb. Uninstalling the newer driver and installing the older one fixes the problem. I have to go through that with every new build.
      My ComputersSystem Spec
  3.    06 Jul 2017 #13
    Join Date : Apr 2016
    Posts : 27
    win 10
    Thread Starter

    it definitely has to do with autotuning.

    I'm in california. Server box is in new york.

    It's so lopsided. I can pull fast speed from the server. But uploading to the server from california is a painful 150 KB/s.

    My other server box is also in NY, right next door in the same datacenter. I can upload to that box at 1500KB/s.

    Windows aggressively throttles my speed on one of the boxes for no good reason.


    Quote Originally Posted by bro67 View Post
    If the OP is using Windows Desktop, they are always going to have a issue. Especially if they have different computer hardware and not using a VM like most people do. With it being over 2500 miles away, the OP is going to see problems.
    What's this thing about virtual machine?

    I was just thinking about using a linux virtual machine within the Windows desktop server. However, I think Windows autotuning will still cripple the virtual machine.


    If VM doesn't work, I'm going to dual boot linux.

    I'm not very savvy with linux, and I'm taking a google crash course on it right now.
      My ComputerSystem Spec
  4.    07 Jul 2017 #14
    Join Date : May 2015
    Central IL
    Posts : 4,250
    Mac OS Sierra

    Quote Originally Posted by Josey Wales View Post
    The speed above is the same as it was with Windows 7. If I remove my router the Download will jump to 110
    If your Gateway is throttling, it may not have a high enough WAN to LAN speed, slow CPU and limited RAM. Those are the worse bottlenecks that you can run into on a network.
      My ComputerSystem Spec
  5.    07 Jul 2017 #15
    Join Date : May 2015
    Central IL
    Posts : 4,250
    Mac OS Sierra

    link626 have someone at the datacenter run the same tests, along with pulling the machines out of their racks to make sure that they run properly on a test bench. What is the hardware that you are running on those two computers, and if running Windows Desktop for file space, what is keeping you from just using Linux on a single server as a VM.
      My ComputerSystem Spec
  6.    07 Jul 2017 #16
    Join Date : Apr 2016
    Posts : 27
    win 10
    Thread Starter

    Quote Originally Posted by bro67 View Post
    link626 have someone at the datacenter run the same tests, along with pulling the machines out of their racks to make sure that they run properly on a test bench. What is the hardware that you are running on those two computers, and if running Windows Desktop for file space, what is keeping you from just using Linux on a single server as a VM.
    can you clarify what you mean by running a linux vm? you mean give up my dedicated server altogether and just go rent a virtual machine?


    The hardware is core i5 3550 and xeon 1230, both with 8gb ram.

    I just installed Windows Server 2016 to see if there's any difference, and it's the same crappy receive window tuning. It throttles as hard as Windows 7 and 10.

    All 3 os's had window tuning =normal, heuristics disabled, and ctcp congestion.

    I'm just going to go back and install windows 7 on this.


    server 2016...
    Code:
    
    
    TCP Global Parameters
    ----------------------------------------------
    Receive-Side Scaling State          : enabled
    Chimney Offload State               : disabled
    NetDMA State                        : disabled
    Direct Cache Access (DCA)           : disabled
    Receive Window Auto-Tuning Level    : normal
    Add-On Congestion Control Provider  : none   ....... netsh incorrect, according to speedguide. Really ctcp
    ECN Capability                      : enabled
    RFC 1323 Timestamps                 : disabled
    Initial RTO                         : 3000
    Receive Segment Coalescing State    : enabled
    Non Sack Rtt Resiliency             : disabled
    Max SYN Retransmissions             : 2
    TCP Fast Open                       : disabled
    
    
    
    
    C:\Windows\system32>netsh int tcp show heuristics
    TCP Window Scaling heuristics Parameters
    ----------------------------------------------
    Window Scaling heuristics         : disabled
    Qualifying Destination Threshold  : 3
    Profile type unknown              : normal
    Profile type public               : normal
    Profile type private              : normal
    Profile type domain               : normal
      My ComputerSystem Spec
  7.    08 Jul 2017 #17
    Join Date : May 2015
    Central IL
    Posts : 4,250
    Mac OS Sierra

    Need to know what the Motherboard is, if the NIC is onboard or external as a PCIe device. What is the Ethernet connection speed that you can get from the SmartSwitch they have you on and can you use Fiber instead of Ethernet. If they can allow you up to say 10gb/s, you could just use a Fibre card.

    I would have them pull the machines and as I stated before, put them on a test bench to isolate them from that particular switch they are on. The Xenon is your faster machine. A Virtual Machine would allow you to run multiple servers on a VM and save costs. Your XENON is end of life, but you should be able to go with 32GB for RAM. Alos may want to use a SSD with Enterprise grade Platter drives if you have not done so far to try and squeeze all of the power that you can out of that machine.

    Windows is better for a desktop and better maintained if you can use the tools that your NOC provider allows those who have rackspace.

    Write up some of the info that we have suggested and send it to the person you work with at the NOC to have them try the same tests and see how you may fare better with a Linux box running FTP, which is far better in handling packets and easier to secure for the long term.
      My ComputerSystem Spec
  8.    09 Jul 2017 #18
    Join Date : Apr 2016
    Posts : 27
    win 10
    Thread Starter

    On the server, I just installed ubuntu 16.04 desktop dual boot with win7.

    Speed difference is night and day.

    On ubuntu, I run samba, and max out my home internet. Very solid steady maxed out speed. No up/down rollercoaster speed like in Windows.

    ftp download speeds are half of samba, but they are rock solid, no dips, and faster than anything Windows ever gave me.
    Upload speeds to ftp are my max upload speed.

    samba, ftp, apache server..... all fast on linux.

    Windows Server?! Windows 10??? both suck so hard.
    No amount of tweaking could fix their auto tuning.

    They really need to fix their tcp stack. It's embarrassing compared to linux.
      My ComputerSystem Spec

 
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