The short answer
Wi-Fi that drops every few minutes is usually channel congestion on the 2.4 GHz band, not a dying router. Set a fixed channel of 1, 6 or 11, move everything you can onto 5 GHz, and turn off your device’s automatic network switching. That clears most cases in about ten minutes and costs nothing.
There is a specific kind of Wi-Fi failure that drives people to buy a new router they did not need. The connection works. Pages load. Then, every few minutes, everything stalls for five to twenty seconds and comes back on its own. Video calls freeze mid-sentence. A download restarts. The Wi-Fi icon never actually disappears.
That pattern — brief, repeating, self-healing — points at a very short list of causes, and hardware failure is near the bottom of it. Work through the checks below in order and you will almost certainly find it.
First, work out which end is dropping
This one question saves you hours, because it splits the problem in half. Watch what happens the next time it drops:
- One device drops, everything else is fine. The problem is that device — its Wi-Fi adapter, its power settings or its network profile. Skip to the device-specific fixes.
- Every device drops at the same moment. The problem is the router or the line coming into your home.
- Everything drops, but only in one room. That is range or interference, not a fault.
A quick way to test the second case: leave a continuous ping running to your router. On Windows, open Command Prompt and run ping 192.168.1.1 -t. On a Mac, open Terminal and run ping 192.168.1.1. If the ping to your own router keeps failing, the drop is inside your home and your internet provider is not the problem, whatever their support script says.
Why Wi-Fi drops every few minutes
Channel congestion (the most common cause by far)
The 2.4 GHz band has only three channels that do not overlap: 1, 6 and 11. Every router, smart plug, doorbell and baby monitor in your building shares them. When too many networks sit on the same channel, they take turns transmitting — and when the airtime runs out, your connection stalls. This is why the problem so often appears in the evening: that is when everyone is home and streaming.
Most routers ship set to “Auto” channel selection, which sounds clever and often is not. Many only re-evaluate the channel at boot, so a router that picked a quiet channel at 3am in July is still sitting on a crowded one in December.
Band steering and roaming
Modern routers broadcast 2.4 GHz and 5 GHz under one network name and decide which one your phone should use. That decision-making is where a lot of drops come from. The router pushes the device to the other band, the device disagrees, and you get a few seconds of nothing while they negotiate. Mesh systems do the same thing between nodes.
Power saving on the device
Laptops in particular are configured from the factory to power down the Wi-Fi adapter to save battery. When it wakes, it has to re-associate with the network. If you see drops mostly when a laptop has been idle for a minute, this is your culprit.
Interference from things that are not Wi-Fi
2.4 GHz is a public band. Microwave ovens, cordless phones, older Bluetooth speakers, wireless security cameras and some baby monitors all sit in it. A drop that happens at reliable times — every evening while dinner is cooking, for example — is worth taking literally.
A DHCP lease that will not renew
Your router hands each device an IP address on a timer. If two devices end up assigned the same address, or the lease table is full, you get disconnections every time a lease is due for renewal. This produces drops at suspiciously regular intervals.
The fixes, in order
Work from the top. The first three are free, take minutes and resolve most cases.
Restart the router properly
Unplug the router at the wall, wait a full 30 seconds, then plug it back in and give it two minutes to come up. The wait matters: it lets the capacitors drain and the memory clear, which a quick off-on does not. If your modem is a separate box, power both off, bring the modem up first, then the router.
Set a fixed 2.4 GHz channel
Log in to your router (usually 192.168.1.1 or 192.168.0.1 in a browser — the address and default password are normally printed on a sticker underneath). Find the wireless settings for the 2.4 GHz band and change Channel from Auto to 1, 6 or 11. If you can scan for nearby networks first, pick whichever of those three is least used. Save and let the router restart.
Split the two bands into separate network names
In the same wireless settings, give the 5 GHz band its own name — for example add “-5G” to the end. Then connect your phones, laptops, TV and games console to the 5 GHz network directly. This takes the router’s band-steering guesswork out of the equation entirely, and 5 GHz is dramatically less crowded in flats. Leave smart plugs, doorbells and older gear on 2.4 GHz, because most of them cannot use 5 GHz at all.
Turn off Wi-Fi power saving on laptops
On Windows, open Device Manager, expand Network adapters, right-click your Wi-Fi adapter, choose Properties, then the Power Management tab, and untick “Allow the computer to turn off this device to save power”. While you are there, open Control Panel, Power Options, Change plan settings, Change advanced power settings, and set Wireless Adapter Settings to Maximum Performance.
Forget the network and rejoin it
A corrupted saved network profile causes drops that follow one device everywhere. On the affected device, forget the network completely, restart the device, then reconnect and type the password in fresh. On Windows this is Settings, Network and Internet, Wi-Fi, Manage known networks. On a Mac it is System Settings, Wi-Fi, Advanced.
Update the router firmware
Router makers ship genuine stability fixes, and a lot of routers never install them. The option is usually under Administration, System or Advanced, labelled Firmware Update. Do not interrupt it. If your router is more than about six years old it may have no updates left at all, which is useful information in itself.
Update or roll back the Wi-Fi driver
If one Windows laptop is the only thing dropping, the driver is a strong suspect. Get the driver from the laptop maker’s support page for your exact model rather than from Windows Update, which often installs a generic version. If the drops started right after an update, use Device Manager, Properties, Driver tab, Roll Back Driver.
Set a static IP or extend the DHCP lease
If the drops arrive at regular intervals, go into the router’s LAN or DHCP settings and raise the lease time to 24 hours. Alternatively, assign the problem device a reserved address so it always gets the same one. This removes the renewal as a cause entirely.
Move the router, or move what is near it
Routers belong in the open, high up, and away from metal, mirrors, water tanks, fish tanks, microwaves and cordless phone bases. A router in a cupboard or behind a television is working against physics. Ten minutes of repositioning frequently beats a hundred-pound upgrade.
A factory reset wipes your Wi-Fi name, password and every custom setting, and any device you own that connects to Wi-Fi will need setting up again. Write down your current settings first, and treat it as a last resort rather than a second step.
If only one device drops
When everything else in the house is stable, stop touching the router. The cause is on the device, and the order that finds it fastest is: power saving, then network profile, then driver, then a different band. On phones specifically, look for a setting variously called “Smart network switch”, “Adaptive Wi-Fi”, “Switch to mobile data” or “Wi-Fi Assist”. It watches Wi-Fi quality and hands you over to mobile data when it judges the connection poor, which looks exactly like a Wi-Fi drop and quietly spends your data allowance. On iPhone it is in Settings, Mobile Data, Wi-Fi Assist, right at the bottom.
If everything drops at once
Now the router or the line is genuinely implicated. Two things worth checking that people rarely do:
- Heat. Put your hand on the router. If it is hot rather than warm, it may be throttling or resetting. Give it air on all sides and see whether the pattern changes.
- The physical line. Check the cable from the wall socket to the modem, and any splitter or extension. On DSL connections a filter that has failed will produce exactly this stuttering pattern.
If your router logs are accessible — usually under Status, System Log or Administration — look at the timestamps around a drop. Repeated “DSL link down” or “no carrier” entries point squarely at the line, and that is your provider’s problem to fix. Those log entries are also the fastest way to get past a support script.
When it is actually time to replace the router
Replace it when the evidence says so, not before. The realistic indicators:
- It has no firmware updates available and is more than six or seven years old.
- It only supports 2.4 GHz, or does not support 802.11ac / Wi-Fi 5 at minimum.
- Drops continue after a factory reset with a fixed channel and split bands.
- You have more than about 25 connected devices, which is more than many older routers can hold in their client tables.
Note the distinction between range and congestion, because it decides what to buy. If your problem is that a back bedroom has no signal, a mesh system genuinely helps. If your problem is that everything drops everywhere at 8pm, a mesh system will not fix it — that is congestion, and adding more radios to a crowded band can make it slightly worse.
Frequently asked questions
That is the signature of channel congestion. Your neighbours come home and start streaming, the shared 2.4 GHz channels run out of airtime, and connections stall. Fixing the channel and moving devices to 5 GHz is the direct answer.Why does my Wi-Fi only drop in the evening?
Usually not, and it can make things worse. A basic extender receives and rebroadcasts on the same band, roughly halving throughput and adding another hop where the connection can break. Extenders solve distance problems, not stability problems.Will a Wi-Fi extender fix constant disconnections?
5 GHz is far less congested and much more stable indoors at short range, which is what most homes need. 2.4 GHz travels further and through more walls but is shared with every other device in your building. Use 5 GHz for anything that matters and leave 2.4 GHz for smart home gear.Is 2.4 GHz or 5 GHz better for a stable connection?
Yes. Older routers hold a limited table of connected clients, and once it is full, devices get pushed off to make room. If you have accumulated smart bulbs, plugs, cameras and speakers over the years, the count adds up faster than people expect.Can too many devices cause Wi-Fi to drop?
Run a continuous ping to the router’s own address. If pings to your router fail during a drop, the fault is inside your home. If pings to the router are steady but the internet still stops, the fault is upstream and your provider needs to look at the line.How do I tell whether it is my router or my internet provider?
Nine times out of ten, the fix is in the first three steps: restart properly, fix the channel, split the bands. Start there before you spend anything.
