How to Fix Slow Internet on Windows 11 — 12 Proven Fixes
Slow internet on Windows 11 can involve the computer, its local connection, shared traffic or the remote service. Match the next check to the observed symptom rather than assuming the cause. Benchmark your current speed at instantspeedtest.net/, then work through these fixes from quickest to most involved until speed improves.
Fix 1–6: Quick Wins (Under 5 Minutes Each)
Fix 1 — Compare a supported WiFi band. If the computer and router support another band, compare it in the same location. Range and interference differ; switching to 5 GHz does not guarantee an immediate improvement.
Fix 2 — Review metered connection policy. Check the active connection in Network & internet settings. Metered status manages data use and can defer some updates or sync; it is not a universal Mbps cap. Keep it enabled when needed for a limited plan, and assess the data cost before changing it.
Fix 3 — Investigate name-resolution symptoms. If names fail to resolve, record the existing DNS configuration and follow your provider or administrator’s supported procedure. Do not replace managed DNS or expect a resolver change to increase every transfer’s throughput.
Fix 4 — Distinguish cache clearing from address renewal. Microsoft’s ipconfig reference defines /flushdns as clearing the DNS resolver cache and /renew as renewing DHCP configuration. Use the operation relevant to the recorded problem; renewal can interrupt the connection and is not another DNS-flush step.
Fix 5 — Reserve resets for a specific local problem. Record the current configuration and recovery needs before any reset. Winsock reset and Settings Network reset are different operations. Microsoft’s guidance treats Network reset as a later step and notes that VPN or virtual-network software may need restoring afterward; do not run a bundle of resets as routine speed maintenance.
Fix 6 — Review Delivery Optimization activity. Open Windows Update → Advanced options → Delivery Optimization. Check peer-source choices and eligible bandwidth limits before changing them. Turning off “Allow downloads from other devices” stops peer sharing, not Windows Update. The documented limits do not cover manually initiated update or Store downloads in the same way.
Fix 7–12: Deeper Fixes (5–15 Minutes Each)
Fix 7 — Update WiFi driver. Device Manager → Network Adapters → right-click WiFi adapter → Update driver. Visit manufacturer’s site for latest version.
Fix 8 — Check power-related disconnects. If the symptom follows sleep or battery use, inspect the adapter’s supported power settings and manufacturer guidance. Record the original choice before a temporary comparison; options vary by adapter and Windows version.
Fix 9 — Check known background transfers. Inspect Task Manager’s Processes and Performance views. Pause an optional transfer through its own app for one comparison, then resume it and verify completion. Do not end an unfamiliar system or work process merely because it appears active.
Fix 10 — Keep advanced adapter changes model-specific. Leave offload and other advanced properties at supported defaults unless the adapter manufacturer documents a change for your exact model, driver and symptom. The presence of a setting does not establish that disabling it improves performance.
Fix 11 — Run Windows Network Troubleshooter. Microsoft’s current Windows 11 guidance starts with the Network and Internet troubleshooter in Get Help. Follow the supported workflow for your version and record its result rather than assuming it will repair every slowdown.
Fix 12 — Use Ethernet. If all software fixes fail and you need reliable speed, plug in an Ethernet cable. See our wired vs wireless guide.
Related Guides
- WiFi Slow on Laptop But Fast on Phone
- How to Fix Slow Internet on Mac
- How to Speed Up Internet on PC
- What Is DNS and How It Affects Speed
- Internet Slow Only on One Device
- 2.4 GHz vs 5 GHz WiFi
Frequently Asked Questions
Did Windows 11 make my internet slower?
A slowdown noticed after an update is a useful timing clue, not proof of a driver or network-stack regression. Record the Windows build, adapter and driver version, then compare another device and the actual failing task. Follow supported Windows and manufacturer updates for the exact device; avoid assuming they resolve most cases.
Why is my download speed slow in browsers but fast in speed tests?
A browser download and a speed test can use different servers, transfer designs and time windows. The file source, device processing and concurrent traffic can also matter. Compare the same file and connection under recorded conditions, and consult the security product’s supported diagnostics if needed. Do not disable antivirus as a routine speed test or assume parallel downloads guarantee a particular rate.