Windows Auto Tuning
Windows Auto Tuning
Hi there! Over the last couple of years my ISP and I have been arguing about frequent packet loss spikes, making online activities like gaming really annoying. I was using my laptop built on Intel Wi-Fi 6E AX211. The download and upload speeds were extremely poor, so I switched to a plug-and-play TP-Link USB adapter since I’m using a laptop. I thought the early troubles were behind me until I noticed my latency was way off. I adjusted settings, changed the router configuration, even considered buying a different router. Of course, my plan is fiber with speeds up to 3000Mbps. Still, I had no success—sometimes I’d hit 12 ping and then jump to 600 with 50% packet loss every few minutes. This went on for about 30 minutes until I stumbled upon a Microsoft thread suggesting disabling Windows TCP Auto Tuning. The attached files show what happened before and after that change. Can you explain what TCP Auto Tuning does? I searched online but it seemed either too technical or outdated. If you’re having issues with your ISP’s service, maybe the problem isn’t theirs—it could be related to my Windows installation.
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Microsoft details the issue on their site, noting it's been present since Vista. They recommend using a wired connection to avoid latency problems.
No trick with TCP will work, most games rely on UDP packets for game logic, so it's time to start drilling; D. Or just navigate around the rooms and poke holes in door frames. P.S. Buying 3Gbps UP/Down won't matter if you're only using two Wi-Fi connections—you'll likely never get that.
Identify your internet service provider and any relevant modem models. Intel Puma 6 and Puma 7 models are linked to known latency issues; see the provided link for details. ISPs can also contribute to bufferbloat at higher network levels, limiting your control—shifting providers may be necessary. To reduce short-term latency spikes, consider using Ethernet, powerline adapters, or MoCA. Avoid WiFi connections since crowded RF channels worsen performance.
To verify the status of Windows auto tuning, execute this command in a PowerShell prompt. The netsh interface tcp show global command provides the expected output for Windows 11, indicating the current scaling factor and available options. It suggests sticking with the default 'normal' setting as it generally supports normal internet use efficiently. For more advanced configurations, consider the other scaling levels listed.
Were Puma 6/7 modems exclusively DOCSIS? Yes, they were. They offered a 3/3 Gbps speed and confirmed it was FTTH.