![]() ![]() Usually I would just rebuild at this stage, but for a change I want to find the root cause. It seems that potentially Windows 10 is indeed throttling my internet connection. The fact that Linux Distro works at a Gigabit on the same laptop, tells me it's the Windows OS. The fact my laptop is still limited at another location, rules out network configuration external to the laptop, including ISP The fact my laptop can connect to local devices at 1Gb, rules out hardware (cable, switches, docks) There are no bandwidth limitation policies in place, but this is a variable I cannot verify. My laptop is managed by my company's Intune. Disconnected all USB Devices, still slow.There are no running background processes utilising any networking.Wireshark revealed 13.5Mb/s speed when reviewing bandwidth speeds, EXCEPT, when running of which I see higher speeds.Bypassed and routed directly PPPoE from my network adapter, thus exposing my laptop to the raw internet, turning my laptop into a router, still 13.5Mb/s.Bypassed my Unifi Security Gateway and plugged straight into ISP provided router, same 13.5Mb/s.Plugged in a new USB-C to Ethernet adapter, still get 13.5Mb/s.Changed policies to turn off Windows Update 80% bandwidth reservation.Reset Network card with all netsh commands already. ![]() Linux Portable Distro, running on same laptop, in the same configuration, gets 1Gb/s internet fine.IPerf tests reveal speeds to other computers in my network at 1Gb/s, telling me the network card, cabling and infrastructure is working fine.Network cable replaced just in case, running now off a Cat 6a, massively overkill, still slow.Network card is capable, this laptop, in the same configuration, worked at >900Mb/s prior to the date it failed.Other devices, including those that connect via the same switch, running at >900Mb/s Drivers (Dock's NIC, Chipset, Wireless Card) - Fully up to date.Windows 10 Operating System - Fully up to date, even optional updates included.Yes, I've done sfc /scannow, if someone says that I might flip a lid. I know the difference between Mb/s and MB/s, I'm measuring network performance not disk performance. Iperf to external servers reveals 13.5Mbs, I am indeed throttled.Īll other devices on my network are running happily at >900Mb/s. The speed tests carried out are via Edge, Chrome and Firefox browsers. All other speed tests tell me exactly 13.5Mb, consistently and actual download speed is indeed 13.5Mb, despite 's result of >400Mb, my actual download speed is indeed 13.5Mb. Interestingly Ookla's revealed speeds of up to 400Mb down and 98Up, which is still slower than normal, but gives me a good indication something is broken somewhere. I turned it back on without any issues but then discovered by internet speed was 13.5Mb/s (lower case b) on all speed tests, except Ookla. Note that this laptop has worked perfectly fine up until the problem.Īs of Sunday 5th December 2021, my laptop was found to be off, despite me leaving it on over the weekend. There is no built in Ethernet with this laptop. I connect through a Dock, Dell WD19 USB-C, which might sound like the cause, but I have also used a USB-A to Ethernet adaptor as well as a USB-C to Ethernet adaptor. There is no QoS, bandwidth limitations or other impacting configurations set on any of my home infrastructure. I have a 1Gb FTTP (Fibre to the Premises) Internet connection with a 110Mb upload and on a typical day I can comfortably get 950Mb Down and 107 Up. My laptop is wired in, it goes via one unmanaged gigabit switch down to the Unifi Security Gateway, which authenticates to my ISP via PPPoE. This is the first ever time I've used Microsoft Ask a Question, because this is the first ever time I've seen an issue like this and i'm prepared to log the hell of this to help others in the future as I cannot express my frustration. ![]()
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