I got a new pc, the internet speed is somehow capped at 5 MB/s on every program .. Torrent, steam, chrome downloads and everything.
I tried with my laptop and other pc and it's runs all good, no internet cap there.
Tried to reinstall drivers, and updating them to the least update... didn't solve the problem.
Anyone can help me?
96 Answers
I was getting less than half the speed I was paying for (150Mbps instead of 400Mbps) for more than a year and had tried everything from constantly calling tech support to swapping out cables and trying other routers.
When I checked, the line “Receive Window Auto-Tuning Level” was set to disabled.
I fixed my speeds by changing that setting from Disabled to Normal using this line in CMD:
netsh int tcp set global autotuninglevel=normal
2windows 10 can improperly set the auto tuning levels.
Use Cortana to search for “CMD.”
Right-click on “Command Prompt” and click “Run as administrator.”
netsh interface tcp show globalLook for “Receive Window Auto-Tuning Level” under the results in the Command Prompt window.
If it’s set to enabled, it’s turned on, and may be causing your internet issues.
To disable it, run the following command:
netsh int tcp set global autotuninglevel=disabledthe results should be immediate, although it is recommended to restart your PC and power cycle your network gear just to be safe.
Successful command entered:
If that doesn't work for you, you can try to: Press Windows key on your keyboard, then type CMD on search, right-click on the result and choose Run as Admin. Type these following commands to reset your internet/network settings:
netsh int ip reset resetlog.txt
ipconfig /flushdns
netsh winsock reset
Restart your PC and see if the issue is resolved.
Note, both of these solutions are shots in the dark. You have left us with very little information to try and help you with this issue.
references:
4I had a similar problem during an scp copy over my LAN under Windows 10. I have gigabit adapters on both ends. Factoring in scp overhead, I should have been getting a transfer rate between 50-70 MB/sec--wasn't getting that though.
From the network graph in the task manager, my connection was topping out at 100Mbit (~12 MB/sec). It would occasionally burst to 500Mbit for a few seconds, then fall back to 100M--or less. Tried swapping out cables, nics, etc... no dice.
Then I tried disabling the QoS Packet Scheduler under my network interface. That fixed it for me!
Surprised that was it though. From what I recall, Microsoft's QoS Packet Scheduler has been causing similar headaches since Windows XP. I'd have figured it would be in better shape by now...
2In case this helps somebody else: I have a 10Gbe network and could never reach more then 700Mb/s on my windows machine. Long story (and MS paid support later), I finally started un-installing stuff.
Norton Utilities was killing my bandwidth by a factor of 8. After the uninstall, I easily achieved 4Gb/s full duplex. (My Linux server on same hardware achieves 9Gb/s, but that's another story.)
Anyways, hope this helps someone else who struggles with this maddening state!
I disabled the “Receive Window Auto-Tuning Level” and the Qos packets under Network Card Properties. Disabled and Re-enabled the card. Worked!
For me, it was the "Remote Access Connection Manager" service, and I've now shut it down. Download speed doubled in safe mode. So I took a screenshot of "safe" services and compared it to what services are running normally then started turning them off, checking the first half, then the remaining half, and so on, doing Speedtest.net after each batch. It was not just slowing down measured speeds, at times of high traffic even my typing would freeze for short intervals. It pays off to disable services that don't help in any awy.
