Why does my router keep disconnecting? Most often the router is overheating, running old firmware, losing its link to the modem, overloaded by too many devices, or getting unstable power from a failing adapter. First check whether the modem stays online. If it does, the router is the likely cause.
If your router keeps disconnecting, every device in your home can drop offline at once. Sometimes the WiFi disappears. Other times, devices stay on WiFi but show “No Internet.” If the internet never comes back on its own, start with our guide to WiFi connected but no internet.
The router is not always to blame, though. An ISP outage, a failing modem, a damaged cable or a single device can cause the same symptoms. This guide helps you find which part is failing first, then fix it in the right order. For the wider picture, see our home WiFi reliability guide.
Table of Contents
First, Confirm That the Router Is Disconnecting
Check what happens to other devices when the connection drops.
| What happens? | Likely problem | Start here |
|---|---|---|
| Only one phone or computer disconnects | That device, its WiFi adapter or its settings | Forget the network, restart the device and update it |
| WiFi drops, but Ethernet keeps working | Interference, weak coverage or the router's WiFi radio | Test next to the router (Fix 6) |
| Wired and WiFi devices drop at the same time | Modem, ISP, router, cable or power | Check the modem lights and your ISP's outage page (Fix 4) |
| The modem's online light goes out | Modem, ISP signal or incoming line | Contact your ISP with the times it drops |
| The modem stays online, but the router freezes | Router firmware, heat, power or hardware | Check the logs, ventilation and adapter (Fixes 2, 7 and 8) |
| The router restarts on its own | Heat, power adapter, firmware or a scheduled task | See Why Does My Router Keep Resetting Itself? |
| The internet returns after a restart | A temporary router, modem or connection problem | Keep going. A restart hides the cause, it does not fix it |
If only one device is affected, use our broader guide: Why Does My WiFi Keep Disconnecting?
Continue with this guide when your router keeps disconnecting every device at once, or stops responding.
Why Does My Router Keep Resetting Itself?
A router that restarts on its own usually has a power, heat or firmware problem. Use the table to match what you see to the fix.
| What you notice | Likely cause | Go to |
|---|---|---|
| All lights go off, then the router boots again | Loose or failing power adapter | Fix 7 |
| It restarts after long, heavy use and feels hot | Overheating | Fix 2 |
| It restarts at the same time each day or week | Scheduled reboot or automatic update | Fix 9 |
| It started restarting soon after a firmware update | Firmware bug | Fix 3 |
| It keeps restarting on a known good adapter in a cool spot | Failing hardware | Fix 10 |
Fix 1. Restart the Router and Modem Correctly
A proper restart can clear temporary software problems, refresh network connections, and restore communication between the router and modem.
If you have a separate modem and router:
- Unplug the router.
- Unplug the modem.
- Wait 30 to 60 seconds.
- Reconnect the modem.
- Wait until the modem’s normal online lights become stable.
- Reconnect the router.
- Allow several minutes for devices to reconnect.
If you have one combined modem/router gateway, unplug it, wait 30 to 60 seconds, and reconnect it.
Do not press the factory-reset button. A factory reset can erase your WiFi name, password, port-forwarding rules, and other customized settings.
For more detailed instructions, read How to Power Cycle Your Router and Modem the Right Way.
If the internet returns but the router keeps dropping the connection later, the restart is treating a symptom rather than correcting the underlying cause.
Fix 2. Prevent the Router From Overheating
Routers operate continuously and generate heat. A router without enough ventilation may slow down, freeze, restart, or disconnect from the internet.
Common placement problems include:
- Inside a closed cabinet
- Behind a television
- Directly on top of a modem
- Beside other heat-producing equipment
- Near a sunny window
- Covered by papers, boxes, or decorations
- In a hot attic, garage, or equipment room
- Positioned in a way that blocks its ventilation openings
Move the router to an open, ventilated location. Leave space around it and follow the manufacturer’s placement instructions.
Check whether the router becomes unusually hot shortly before the connection fails. If it continues overheating in a properly ventilated location, its internal hardware or power adapter may be deteriorating.
Fix 3. Update the Router Firmware
Router firmware controls wireless radios, security, traffic management, connected devices, and communication with the modem.
Manufacturers may release firmware updates to correct:
- Random router restarts
- WiFi connection drops
- WAN connection failures
- Security vulnerabilities
- Device compatibility problems
- Performance and stability issues
- Failed communication with the modem
Open the manufacturer’s router application or administration page. Look for a section called Firmware, Router Update, System Update, Maintenance, or Administration.
Only install firmware intended for the router’s exact model and hardware revision. Do not disconnect the power during an update.
The Federal Trade Commission recommends keeping router software current and checking with the manufacturer or ISP for available updates.
If the manufacturer no longer provides updates for your model, consider replacing the router with supported equipment.
Fix 4. Check the Router's Connection to the Modem
Your modem connects the property to the internet provider. Your router distributes that connection to local wired and wireless devices.
A router may appear to be working because it still broadcasts a WiFi network, even though its connection to the modem has failed.
When the router disconnects from the internet:
- Check whether the modem’s online light remains stable.
- Inspect the Ethernet cable between the modem and router.
- Disconnect and reconnect both ends of the cable.
- Replace the Ethernet cable if it is damaged or unreliable.
- Check the router’s Internet or WAN status.
- Look for WAN disconnection messages in the router logs.
- Check the ISP’s outage page or service notifications.
If the modem loses its provider connection, replacing the router probably will not solve the problem. Contact the ISP and provide the dates and times of recurring outages.
Fix 5. Reduce Network Congestion and Device Load
A router has to manage every connected computer, phone, TV, speaker, camera, game console, appliance and smart home device.
Older or basic routers can struggle when many devices at once:
- Stream high-resolution video
- Upload security camera recordings
- Run cloud backups
- Download large files
- Join video calls
- Play online games
- Send smart home data all day
Pause downloads, backups and streaming for a while. Disconnect equipment you no longer use and review the router’s connected device list.
Change the WiFi password if you suspect unknown devices are using your network.
Quality of Service settings may help put work calls, gaming or streaming first. However, these settings cannot make up for a router that lacks the processing power, memory or wireless capacity your network needs.
Fix 6. Investigate Wireless Interference
If Ethernet stays connected while WiFi devices drop, the internet service and modem may be working normally. The problem may be limited to the router’s wireless radios, placement or channel settings.
Possible causes include:
- Neighboring WiFi networks
- Congested wireless channels
- Bluetooth devices
- Cordless phones
- Baby monitors
- Wireless cameras
- Microwave ovens
- Thick walls and metal barriers
- Incorrect band steering settings
- Failing wireless hardware
Test a device close to the router. If the connection becomes stable, weak coverage or interference is more likely than a full router failure.
The 2.4 GHz band usually reaches farther but is more crowded. The 5 GHz band is often faster at short range but weakens more quickly through walls.
Fix 7. Check the Router's Power Adapter
An unstable or failing power adapter can make a router restart or shut down unexpectedly.
Warning signs include:
- Router lights suddenly turning off
- Random router restarts
- A loose power connector
- An unusually hot adapter
- Restarts after minor electrical fluctuations
- The router losing power when its cable moves
- Buzzing or visible damage around the adapter
Only use a manufacturer-approved replacement with the correct voltage, current, connector, and polarity. An incompatible adapter can damage the router or create a safety risk.
A surge protector or uninterruptible power supply may help in a location with unstable electrical service, but it will not repair a defective router or adapter.
Fix 8. Review the Router Logs
Router logs may show what happens just before the internet connection drops.
Look for entries about:
- WAN disconnection
- DHCP failure
- Lost ISP lease
- Authentication failure
- System restart
- Firmware or kernel error
- WiFi radio restart
- Internet connection timeout
- Unexpected configuration change
Note the time of each failure. Compare it with modem light changes, ISP outage reports, power interruptions, scheduled router tasks, heavy network use and automatic updates.
Routers use different terms. Check the manufacturer’s help pages if a log message is unclear.
Do not post full logs online without reviewing them first. They may contain device names, local IP addresses or other private network details.
Fix 9. Check for Scheduled Restarts and Settings
Some routers restart automatically after firmware updates or on a set schedule.
Review the settings for:
- Scheduled reboot
- Automatic maintenance
- Firmware installation
- Parental controls
- Internet access schedules
- Energy-saving modes
- WAN connection timers
- Automatic channel selection
- Band steering
If your router keeps disconnecting at about the same time every day or week, a scheduled task may be the cause.
Do not turn off security or firewall settings to troubleshoot. Change one setting at a time, note the original value and restore it if the change does not help.
For security, the FTC recommends turning off remote management and logging out of the router’s admin account when you finish making changes.
Fix 10. Replace Unsupported or Failing Equipment
Consider replacing the router when:
- The manufacturer no longer provides security updates.
- Firmware updates do not fix the connection problems.
- The router overheats despite good airflow.
- It restarts on a power supply you know works.
- It cannot support the number of connected devices.
- It cannot handle the speed of your internet plan.
- Ethernet and WiFi connections fail again and again.
- WiFi stays unstable even close to the router.
- Ports or connectors are damaged.
- The router needs frequent manual restarts.
- Normal troubleshooting does not make it stable.
Before you buy a new router, confirm that the modem, the incoming ISP line and the cables are stable.
See 7 Signs You Should Get a New Router for a full replacement checklist.
If you need a new router anyway, Always Router is a WiFi router with built-in connection monitoring. It runs speed tests and heartbeat checks and reboots itself after a confirmed connection loss. It cannot fix an outage on your provider’s side, a cut cable or failed hardware. (Johnson Creative makes Always Router.)
Should You Restart Your Router Every Day?
A healthy router should not need a daily restart. A scheduled restart can hide a recurring software problem for a while. However, it does not replace firmware updates, good airflow, a reliable power supply or new hardware when the old one is failing.
If your router needs a restart every day, find out why. Our guide on how often you should reboot your router covers routine restarts in detail.
When Automatic Router Recovery Can Help
When a router keeps disconnecting and testing shows that a power cycle normally brings the internet back, automatic recovery can reduce downtime.
This may help in vacation rentals, remote offices, security camera systems, smart homes, cabins, second homes, small businesses and other places where the equipment is hard to reach.
Keep Connect Automatic Router Rebooter checks your internet connection and can power cycle compatible network equipment when it fails, so nobody has to unplug it. It can send you a notification once the connection is back. Setup does not require a mobile app.
It automates the familiar steps of unplugging the router or modem, waiting and restoring power. It does not fix every cause of an internet outage.
An automatic router rebooter cannot:
- Restore an ISP-wide outage
- Repair a damaged provider line
- Improve weak wireless coverage
- Replace a failed modem
- Make up for a router without enough capacity
- Repair faulty hardware
Removing outside power may not shut down equipment that has a working internal battery. Check how your router behaves before you rely on power cycling.
Automatic recovery works best when restarting the local equipment is already known to restore the connection.
For other ways to restart a router from afar, such as your router maker’s app, see How to Reboot a Router Remotely. To compare approaches, see smart rebooter vs monitoring software.
Frequently Asked Questions
Is it my router or my modem that keeps disconnecting?
Watch the modem's online light when the internet drops. If it goes out or blinks, the problem is the modem, the line or your ISP. If it stays solid while the router loses internet, the router or the cable between them is the likely cause.
Why does restarting the router restore the internet?
Restarting clears temporary software problems and rebuilds the link between the router, the modem and your devices. If the problem keeps coming back, find the cause instead of relying on restarts.
Can too many devices cause a router to disconnect?
They can contribute. A router without enough processing power, memory or wireless capacity may become unstable under heavy use. Too many devices more often cause slowdowns than full disconnections, though. Pause downloads, backups and streaming for a day to see whether load is part of the problem.
Why does my router keep dropping internet while the modem stays online?
The router may be losing its WAN link to the modem, running buggy firmware, overheating or running short on capacity. Check the Ethernet cable between the modem and router, the router's Internet or WAN status, and the router logs.
Why does my router keep going out at the same time every day?
A drop at the same time each day often points to a scheduled reboot, an automatic firmware update or a heavy task such as a cloud backup. Check the router's schedule settings and its logs for that time. Fix 9 shows where to look.
Can Keep Connect fix a router that keeps disconnecting?
It can help when a power cycle is what normally brings your internet back. Keep Connect checks your internet connection and can power cycle compatible equipment when it fails, so nobody has to unplug it. It cannot fix failing hardware, damaged wiring or a provider outage.
Final Router Troubleshooting Checklist
If your router keeps disconnecting:
- Confirm that multiple connected devices are affected.
- Check whether the modem remains online.
- Restart the modem and router in the correct order.
- Improve the router’s ventilation.
- Install current manufacturer-approved firmware.
- Inspect the WAN cable and power adapter.
- Temporarily reduce connected-device demand.
- Review the router logs and scheduled tasks.
- Test whether the problem returns.
- Replace unsupported or failing equipment when necessary.
The objective is not simply to restart the router whenever the connection fails. It is to identify why the router keeps dropping internet and apply the appropriate long-term solution.
