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ethernet stuck at 100 mbps after the realtek rtl8019(as) (windows 2000/xp) update

ethernetlanlink-speedrealtek8 replies · 320 views · started
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  1. Una Kim
    @unak446

    im literally losing my mind here i pay for gigabit fiber and my mini PC is wired, but speed tests top out at roughly 95 Mbps 🤦 windows says teh link speed is 100/100 Mbps. thats suspicious, because before the Realtek RTL8019(AS) (Windows 2000/XP) update it showed 1000 and I was getting full speed 😭 heres what teh adapter sattus looks like:

    USB Audio Device Properties

    USB Audio Device Properties
Device status:
This device cannot start. (Code 10)

{Operation Failed}
The requested operation was unsuccessful.

    i haven't touched the cable or the router. can a driver update realy change teh negotiated speed, or is it a coincidence and something physical is going on? im about to throw this thing out the window lol

    2
  2. Jonas Mori
    @jonas_stack

    wait does a different cable on the same port give gigabit??

    day one patch is bigger than the actual game, classic

    0 1 helpful
  5. Ibrahim Duarte
    @nimbusden

    ok so check teh status in a temrinal: Get-NetAdapter | Select Name, LinkSpeed in PowerShell shows the negotiated speed quickly as you test different cables and ports. good luck man!

    6 0 helpful
  6. Theo Tanaka
    @theo.tanaka

    ok so a ~95 Mbps cap almost always means the link negotiated 100 Mbps. gigabit needs all four wire pairs, 100 Mbps only uses two. A damaged cable, a bent pin or a cheap coupler can drop it to 100. swap the cable first since it's the cheapest test. fingers crossed 🤞

    5 0 helpful
  8. Jonas Mori
    @jonas_stack

    ahh classic check for a hidedn power issue: under Power Management tab, untick Allow the computer to turn off this device and see if negotiation behaves after reboot. lmk how it goes

    6 0 helpful
  9. Una Kim
    @unak446
    in reply to @jonas_stack

    @jonas_stack wowww ok speed & Duplex was stuck at 100 Mbps after the update. Set it back to Auto, now it negotiates 1 Gbps and speed tests match gigabit fiber.

    2 0 helpful

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