Why Wi-Fi Keeps Disconnecting, and the Settings to Check in the Right Order

Your laptop’s connection cuts out, comes back, then cuts out again, even though nothing in the room has changed. The cause is usually one specific setting or condition, and you find it by changing one thing at a time and watching what happens. Windows keeps a record of every drop, so you can count them instead of relying on memory.

When your wifi keeps disconnecting, weak signal, a power-saving setting, a faulty driver, the laptop jumping between access points, and router settings can all produce the same symptom. That’s why a long list of fixes applied all at once so often fails. In one Microsoft Q&A thread, a user reset drivers and network settings with no improvement, until Windows’ own troubleshooter named a completely different cause. Below is the order to check things in, so the next change you make tells you something.

Why Your Wi-Fi Keeps Disconnecting — and Why Applying Every Fix at Once Doesn’t Work

Wi-Fi drops happen when the link between your laptop’s wireless adapter and the router breaks. Several unrelated things can break it. The signal may be too weak where you sit. Windows may be putting the adapter to sleep to save battery. The driver may have a bug. The laptop may keep switching between two access points. Or the router may be changing channels or running buggy firmware.

Microsoft’s own Wi-Fi troubleshooting page lists thirteen general steps, from restarting the router to a full network reset. Each one is reasonable on its own. The trouble starts when you do five of them in one evening. If the drops stop, you don’t know which change fixed them, so you can’t repeat the fix after the next Windows update undoes it. If the drops continue, you’ve changed several settings at once and can’t easily go back to where you started.

One HP laptop owner’s HP Community post shows how this plays out. The owner forgot and rejoined the network, ran a network reset, disabled adapter power saving, set the power plan to maximum performance, ran the TCP/IP reset commands and reinstalled the latest driver. None of it worked, and the list gave no clue about what to try next. Every item on it was a reasonable fix. Doing them all together just left nothing to learn from.

If you’ve already changed a pile of settings from other guides, write down what you changed before going further. Each section below asks you to change one thing and then check the result, and that only works if you know what state you started from.

The One-Variable-at-a-Time Test

The method has two parts: a record of when the drops happen, and a rule that you change only one thing between checks.

Where Windows records each drop

Windows logs Wi-Fi events on its own. According to What2Log, each disconnection is written to the Operational log of the WLAN-AutoConfig service, stored as Event ID 8003. To find it, open Event Viewer (type “Event Viewer” in the Start search box), then go to Applications and Services Logs, then Microsoft, then Windows, then WLAN-AutoConfig, then Operational. Every 8003 entry is a timestamped disconnection.

There’s also a faster summary. Open Command Prompt as administrator and type netsh wlan show wlanreport. Microsoft says the wireless network report it produces is an HTML file covering all Wi-Fi events from the last three days. It groups them into sessions and includes a section listing the reasons you were disconnected, plus your current driver version and date. Run it once now to get your starting point, and again after each change.

Keeping a simple log

Alongside the Windows records, keep a short handwritten or spreadsheet log. The Windows logs tell you when a drop happened. Your notes tell you where you were and what else was going on at the time. Here is a layout that covers what the later sections need:

Two columns do most of the work. “Power source” tells you whether drops follow the battery, and “Change in effect” makes sure every drop is tied to exactly one setting. The rule is simple: make one change, use the laptop normally for at least a day, then compare the number of 8003 events with your starting point before touching anything else.

Check Signal Strength First: The Three-Room Test

Start with signal because checking it changes nothing on your laptop. The taskbar icon’s bars are a rough guide at best. A more useful number is signal strength in dBm (decibel-milliwatts). The numbers are negative, and the closer to zero, the stronger the signal.

TP-Link’s troubleshooting page gives this rating scale:

The point where drops start is the move into “Poor”. Around -71 dBm or weaker, disconnections are what the table predicts, not a mystery.

How to take the reading

On most Windows builds, netsh wlan show interfaces in Command Prompt shows signal as a percentage. One Wi-Fi engineer’s blog reports that a Windows 11 Insider Preview build now shows the value in dBm directly, but he wasn’t sure which version added it, so your laptop may not show it yet. The HP owner mentioned in the next section checked signal with the free WiFi Analyzer app from the Microsoft Store, which gives dBm readings.

Take a reading in three places: next to the router, in the room where you usually work, and in the room where the drops seem worst. Write each one in your log. If the drops only happen where the reading falls into the poor range, you’ve found your cause, and the fix is distance or placement rather than a setting. ASUS’s router guide notes that 2.4 GHz reaches further than 5 GHz, but 5 GHz is faster, and it names metal cabinets, concrete walls and appliances such as microwave ovens as common sources of trouble. If your readings are good or excellent everywhere the drops happen, weak signal is unlikely to be the cause, and you can move on.

The Power-Saving Setting That Silently Kills Your Wi-Fi

Windows can switch the wireless adapter off to save battery. If it doesn’t wake up cleanly, you see a drop. This is a separate question from signal strength: a laptop sitting a metre from the router can still drop for this reason.

First, compare drops on battery with drops on the charger in your log. If they cluster when the laptop is unplugged (during a power cut, for example), this section and the Wi-Fi 6 part of the router section are the places to look.

Microsoft gives two places to change this, and you should treat them as two separate tests:

1. Adapter power management. Open Device Manager, expand Network adapters, right-click your Wi-Fi adapter and choose Properties. On the Power Management tab, uncheck “Allow the computer to turn off this device to save power”, as described in Microsoft’s fix guide.
2. Power plan setting. Go to Control Panel, then Hardware and Sound, then Power Options. Choose Change plan settings, then Change advanced power settings. Expand Wireless Adapter Settings and set Power Saving Mode to Maximum Performance. This is the step Microsoft lists for connections that drop frequently.

These two settings are easy to mix up. The first decides whether Windows may switch the adapter off entirely. The second controls how hard the adapter tries to save power while it stays on. Change the first, log for a day, then change the second.

The Power Management tab doesn’t appear on every laptop. The HP owner had to edit the Windows registry just to make it show up. Registry edits can cause serious problems if done wrong, so if the tab is missing, use the power plan setting instead.

Don’t expect this to fix every case. A Reddit user whose Wi-Fi dropped “3 or 4 times an hour” for 20 to 30 seconds turned off power saving and saw no change. That laptop ran Linux rather than Windows, but the point carries over. The user later said the drops stopped after switching to the 2.4 GHz band, which points to a band or channel problem, not power saving. If your drop count doesn’t change after this test, put the setting back if you like and move on to the driver.

Your Wi-Fi Driver Might Be the Problem — and Newer Isn’t Always Better

The driver is the software Windows uses to talk to the Wi-Fi adapter. A buggy version can cause drops even with perfect signal and power saving switched off. The mistake here is assuming the newest version is always the best one.

One reply in the HP Community Realtek thread says: “Finally fixed my problem by installing an older drive from last year: 6001.15.152.0 when my wifi was stable.” Updates can also be the fix, though. A Dell advisory for the same Realtek 8852BE chip says repeated disconnects when moving between access points are resolved by updating to driver 6001.15.165.3 or later on the affected Dell models. The right version is whichever one is stable on your hardware, and your log is how you find out.

Rolling back, updating, or reinstalling

Start by checking your current driver version and date. The wireless network report shows both, or you can find them on the Driver tab of the adapter’s Properties in Device Manager. Then choose one route based on when the drops started:

1. Drops started after an update. In Device Manager, open the adapter’s Properties, go to the Driver tab and select Roll Back Driver. Microsoft’s driver guide says this needs administrator permissions and that “if the issue occurred after a Windows Update, reinstalling the previous driver often resolves it.”
2. The driver is old or the laptop maker has published a fix. Download the driver from your laptop manufacturer’s support site, then in Device Manager choose Update driver, then Browse my computer for drivers. Microsoft advises against downloading drivers from anywhere other than the manufacturer’s official site.
3. Neither of the above helps. Uninstall the adapter in Device Manager and restart, and Windows will reinstall a driver. Before you do this, download a backup driver from the manufacturer, using another device and a USB flash drive if needed. Microsoft warns that without one, you may be left with no working Wi-Fi to download it.

After any of these, give it the same day of normal use and compare your drop count with the starting point. Microsoft’s fix guide suggests this reinstall route when the connection “stopped working properly after a recent update”, which is exactly the case your log can confirm.

Why Your Laptop Keeps Switching Wi-Fi Networks

In a home with a mesh system, a range extender or two routers, a laptop can drop a perfectly good connection just to jump to another access point. Windows calls this excessive roaming, and it’s worth checking before you blame the router. When the Microsoft Q&A user ran the troubleshooter, it reported: “This computer is continuously switching between two or more wireless routers or access points.” If your home only has one router and nothing extending it, skip this section.

The setting that controls this is Roaming Aggressiveness. Intel’s explanation is that it sets how weak the current signal must get before the adapter starts looking for another access point. On Highest, the adapter starts looking while the current signal is still good. On Lowest, it waits until the signal is very low.

To change it, open Device Manager, expand Network adapters, open your Wi-Fi adapter’s Properties and go to the Advanced tab. Find Roaming Aggressiveness in the list. Dell’s adapter settings page recommends Lowest or Medium-Low for home devices that stay in one place, and Medium for business networks where you move between access points. Intel’s default is Medium, and Intel suggests going back to it if other values don’t help. Dell also notes that some options may not appear, depending on the adapter model and driver. If yours isn’t listed, this test isn’t available on your laptop.

The answer in that Q&A thread adds one more step: under Settings, Network & internet, Wi-Fi, Manage known networks, forget any networks you don’t want the laptop joining.

Router-Side Checks After You’ve Ruled Out the Laptop

If signal, power saving, driver and roaming have all been tested without changing your drop count, turn to the router. First check whether other devices drop at the same times as your laptop. If only the laptop drops, it’s more likely a compatibility problem between the laptop and the router than a fault in the router itself.

Channel and DFS

Routers on the 5 GHz band can use DFS (Dynamic Frequency Selection) channels, which share frequencies with radar. ASUS’s DFS explainer says that when the router detects radar on its channel, connected devices can be disconnected “for a period of time” while it moves to another channel. After a reboot on a DFS channel, the 5 GHz network can also be unavailable for 1 to 10 minutes. If drops happen only on 5 GHz and look random, try turning off automatic DFS selection. On ASUS routers, that means unchecking “Auto select channel including DFS channels” under Wireless, then General. ASUS also notes that the channels available differ by country according to local law, so what your router offers in Nigeria may not match screenshots from elsewhere.

Congestion on 2.4 GHz is a separate issue. TP-Link suggests switching to another channel with a narrower channel width and watching the results again.

Bands and one network name

When 2.4 GHz and 5 GHz share one network name, the router or laptop can switch between bands on its own. TP-Link advises against using the same network name for separate bands, and ASUS’s troubleshooting lists turning off Smart Connect so each band gets its own name. After splitting them, connect to one band only and log a day. It’s the same test that pointed the Reddit user from earlier to the 2.4 GHz band.

Firmware and Wi-Fi 6 compatibility

ASUS recommends keeping router firmware up to date. Updates can go both ways, though. In one Reddit thread, a Deco owner suspected firmware 1.3.0 and tried new units on older firmware, then reported the drops came back on the sixth day. A firmware theory needs the same log-based check as anything else.

One HP owner had a newer Wi-Fi 6 laptop that dropped only on battery, connected to a ten-year-old router. The owner solved it by buying a Wi-Fi 6 router. The owner’s own guess was a Wi-Fi 6 power-saving feature called Target Wake Time, but that was a theory, not a confirmed cause. Before spending money, try a free test. Dell’s adapter guide says that if you get constant drops on newer routers, you can set the adapter’s 802.11ax (Wi-Fi 6) Mode to Disabled so it falls back to an older standard. This setting isn’t on every adapter: one poster in the HP thread couldn’t find it.

A factory reset is the last resort on the router side. ASUS warns that it clears all settings and you’ll need to set the router up again.

When the Drops Aren’t Yours to Fix

Some drops aren’t caused by anything on your laptop or in your router settings. The checks below tell you whether you’re dealing with one of those.

The link to the router stays up, but the internet goes. Microsoft’s fix guide describes the test. Run ipconfig to find your router’s address (listed as Default gateway), then ping that address. If the router replies while web pages still fail, the problem may be the modem or your internet provider. Microsoft says to contact the provider or check for an outage. If the router doesn’t reply, connect the laptop to the modem with an Ethernet cable where possible. If that connection works, the problem is the Wi-Fi router.

Wired devices fail too. ASUS’s guidance is that if wired devices also can’t reach the internet, it’s an internet-access problem, not a Wi-Fi problem. TP-Link says the same: connect a device directly to the modem, check its lights, and report an unstable line to your provider if the issues continue. Your drop log and wireless network report give the provider’s support team specific times instead of “it keeps going off”.

The adapter itself looks faulty. Microsoft says that if the wireless adapter isn’t listed in Device Manager, Windows isn’t detecting it. It also says a “Problem number” in the wireless network report matches a Device Manager error code that explains why the driver didn’t load. Either result means you need your laptop manufacturer or a service centre, especially while the laptop is under warranty, rather than more settings changes.

Network reset. Microsoft calls this the last step to try. It removes and reinstalls all network adapters, returns their settings to defaults, may require you to set up VPN software again, and can switch saved networks to a public profile. Save it for after the one-change-at-a-time tests are finished, not as the first thing you try.

The full diagnostic sequence

1. Write down any settings you’ve already changed, then run netsh wlan show wlanreport to record your starting point.
2. Log drops for a day, noting the room and whether the laptop is on battery or charging.
3. Take signal readings in three rooms. Fix placement if the drops line up with poor readings.
4. Turn off adapter power management and log a day. Then set the power plan’s Wireless Adapter Settings to Maximum Performance and log another day.
5. Check the driver version. Roll back, update from the manufacturer, or reinstall, and log after each.
6. If you have more than one access point, lower Roaming Aggressiveness and log.
7. On the router, turn off automatic DFS channel selection, give each band its own name, and check firmware, one change at a time.
8. Run the ping and wired tests. Contact your provider or service centre if the results point to them.

Where Most People Go Wrong

The most common mistake is changing five settings in one evening and then having no idea which one mattered. The problem is almost always a single cause, whether that’s weak signal, power saving, the driver, roaming or the router, and your drop log is the only reliable way to tell which. Make one change, give it a full day, and compare the count before you touch anything else. When the drops stop, you’ll know exactly which setting to check again after the next Windows or router update.

Frequently Asked Questions

Why does my phone stay connected when my laptop keeps dropping?

That points to the laptop rather than the router. Microsoft’s guide says that if another device connects fine, the problem is likely your device, so start with the laptop’s power saving, driver and roaming settings.

Should I just buy a new router?

Not before testing. The HP owner’s drops ended with a Wi-Fi 6 router, but the Deco owner’s drops returned on replacement units by the sixth day. Try disabling the adapter’s Wi-Fi 6 mode first, which costs nothing.

Is it safe to leave Roaming Aggressiveness on Lowest?

For a laptop that stays in one room, Dell recommends Lowest or Medium-Low. If you move between access points often, Dell suggests Medium, and Intel advises returning to its Medium default when other values bring no improvement.