Your Wi-Fi 7 laptop connects fine, but speed tests show a fraction of what the router promises — sometimes slower than your old Wi-Fi 6 laptop. A connection is not the same as a fast connection. Wi-Fi 7 speed depends on the band, the channel width, the number of spatial streams, and whether the laptop and router actually agreed on the fastest combination or quietly settled for a slow one.

The usual story is a silent downgrade: the laptop joins the 5GHz band instead of 6GHz, negotiates an 80MHz channel instead of 320MHz, or runs a driver that caps throughput. Each of those looks like a working connection with disappointing speed.

This guide finds the downgrade in order: link check, band and channel, driver, router, and environment. Measure speed after each fix so you know which change actually helped.

Why this happens

  • Connected to 5GHz or 2.4GHz instead of 6GHz: Band steering or a weak 6GHz signal can park the laptop on a slower band, cutting speed by half or more even though the connection looks healthy.
  • Narrow channel width negotiated: Wi-Fi 7’s headline speeds need 320MHz channels on 6GHz. If the router or driver settles for 80MHz, throughput drops dramatically.
  • Outdated Wi-Fi driver with throughput bugs: Early Wi-Fi 7 drivers had aggregation and power-saving bugs that capped real-world speed well below the negotiated link rate.
  • Router backhaul or internet bottleneck: If the router’s own internet connection or its mesh backhaul is slow, no Wi-Fi setting on the laptop can exceed it — the bottleneck is upstream.
  • Interference and distance on 6GHz: The 6GHz band is fast but short-range. Walls and distance hurt it more than 5GHz, so a laptop two rooms away may be slower on 6GHz than on 5GHz.
  • VPN, security software, or power saving throttling: VPN encryption, third-party firewalls, and aggressive power-saving modes can all cap throughput below what the radio link supports.

How to fix it

Work through these in order — diagnose first, then act.

Do not guess from the network name. Windows shows exactly what the laptop negotiated, and that number explains most slow-speed complaints.

  1. Open Settings > Network & internet > Wi-Fi, click your network, and note the link speed, band, and protocol shown.
  2. A link speed under 1000 Mbps on Wi-Fi 7 usually means a narrow channel or a non-6GHz band — note the numbers before changing anything.
  3. Run a speed test near the router and again from your normal seating position to separate signal problems from configuration problems.
  4. Disconnect any VPN and pause cloud backups before testing, so the measurement reflects the Wi-Fi link, not other traffic.
  5. If the link shows 6GHz with a high link speed but internet tests are slow, the bottleneck is upstream — test with a wired connection to confirm. Connection-level problems are covered separately in Wi-Fi 7 not connecting fixes .

Fix 2: Force the 6GHz band and widen the channel

Once you know the laptop is on a slow band or narrow channel, steering it to 6GHz with a wide channel is the biggest single speed win.

  1. In the router settings, enable the 6GHz band and set its channel width to 320MHz if your router offers it.
  2. Give the 6GHz band its own network name temporarily and connect the laptop to it directly.
  3. Recheck the link speed — it should jump significantly if 6GHz with a wide channel is now in use.
  4. If 6GHz is weak from your normal position, move closer to the router or add an access point; 6GHz speed falls fast with distance.
  5. If the laptop refuses 6GHz entirely, check the router’s region and channel settings, since some channels are restricted by region.

Fix 3: Update the Wi-Fi driver and disable power saving

Driver throughput bugs and power-saving throttling are the two laptop-side speed killers. Both are quick to rule out.

  1. Download the latest Wi-Fi driver for your exact card from your laptop maker’s support page or Intel’s driver detection tool .
  2. Install it, restart, and re-run the speed test from the same position as before.
  3. Open Device Manager > Network adapters, open the Wi-Fi card properties, and set any power-saving or throughput-related advanced options to maximum performance.
  4. Uncheck Allow the computer to turn off this device to save power on the Power Management tab.
  5. Test on AC power with the power mode set to best performance — if speed recovers on AC, a power policy was throttling the radio.

Multi-Link Operation is supposed to help, but early implementations sometimes hurt. Testing it both ways takes two minutes and settles the question for your hardware.

  1. In the router settings, note whether MLO is currently on or off.
  2. Toggle it to the opposite state, restart the router, and reconnect the laptop.
  3. Run the same speed test from the same position and compare with your earlier numbers.
  4. Keep whichever setting is faster — there is no universal right answer with current driver and firmware combinations.
  5. Check for router firmware updates afterward, since MLO behavior improves with nearly every release.

Fix 5: Reduce interference and improve placement

Wi-Fi 7 speed is physics as much as configuration. Neighbors’ networks, walls, and router placement all cap real-world throughput.

  1. Move the router to a central, elevated position away from metal objects, aquariums, and thick walls if possible.
  2. In the router settings, let 6GHz choose its channel automatically, since it has many clean channels, but set 5GHz to a less congested channel if you use it.
  3. Move other high-bandwidth devices off the same band during testing to see whether congestion is the limiter.
  4. Test speed with the laptop in the same room as the router — if it is fast there and slow elsewhere, placement or a mesh node is the fix, not a laptop setting.
  5. Consider a wired backhaul for mesh nodes, since a wireless mesh backhaul halves the bandwidth available to clients.

Fix 6: Rule out software caps and test against wired speed

If the radio link is fast but internet speed is slow, something on the laptop or upstream is capping throughput. Isolate it before blaming Wi-Fi.

  1. Run a speed test with a wired Ethernet connection, using a USB-C adapter if needed — this is your ceiling.
  2. Temporarily disable third-party antivirus firewalls and VPNs and retest on Wi-Fi.
  3. Check Task Manager for background uploads, cloud sync, or Windows Update activity during tests.
  4. Test with a different browser or the router’s own speed test to rule out a slow test server.
  5. If Wi-Fi matches wired speed after these checks, your Wi-Fi is fine and the earlier slow results came from software or server limits. If Wi-Fi still lags wired by a wide margin on 6GHz near the router, report the link speed, driver version, and router model to your laptop maker — that points to a driver or card fault. Related power-policy effects also appear in battery calibration problems on the same machines.

Closing

Slow Wi-Fi 7 on an AI laptop is almost always a silent downgrade: the wrong band, a narrow channel, an old driver, or a power policy. Check the negotiated link speed first, force 6GHz with a wide channel second, and update the driver third. When the link itself is fast but the internet is slow, the bottleneck is upstream — and no Wi-Fi setting will fix that. If this fix did not fully resolve the issue, related troubleshooting for Starfield Arm Laptop Crashing and Copilot Actions Not Working covers neighboring causes that can produce the same symptom on AI laptops.

Frequently asked questions

Why is my Wi-Fi 7 laptop slower than my phone on the same network?
The laptop may be connected to the 2.4GHz or 5GHz band while the phone uses 6GHz, or its driver may have negotiated a narrow channel width. Checking the link speed in the connection properties shows which band and width the laptop actually negotiated.
What speed should Wi-Fi 7 actually deliver?
Real-world Wi-Fi 7 speeds depend on distance, channel width, and the router’s backhaul. Near the router on 6GHz with a 320MHz channel, gigabit-plus speeds are realistic; through walls or on 5GHz, speeds fall sharply. Compare against a wired connection to judge fairly.
Does Multi-Link Operation make Wi-Fi 7 faster or slower?
Multi-Link Operation can improve speed and latency by using two bands at once, but early drivers sometimes negotiate it poorly and end up slower than a single clean 6GHz link. Testing with MLO off is a useful diagnostic.
Can a VPN slow down my Wi-Fi 7 connection?
Yes. A VPN adds encryption overhead and routes traffic through a remote server, which caps speed regardless of the Wi-Fi link. Disconnect the VPN before measuring Wi-Fi speed to get a true reading.