Internet Keeps Disconnecting? How to Find and Fix the Cause

When your internet keeps disconnecting, it is tempting to restart everything or reset the router. But the fastest way to solve the problem is to find out where the connection is failing first. If only one laptop drops offline, changing router settings may do nothing. If every device loses internet at once, troubleshooting each device is a waste of time.

Use the checks below in order, starting with the simplest tests. They can help you distinguish a device problem from weak Wi-Fi, router trouble, or an issue with your internet provider.

1. Find out whether one device or the whole network is affected

• Only one device disconnects: check that device's Wi-Fi settings, network driver, or wireless adapter.
• Several devices disconnect at the same time: focus on the router, modem, or internet provider.
• Wi-Fi disconnects but a wired connection stays stable: the wireless signal or interference is a more likely cause than the internet line itself.
• The problem happens mostly at certain times: it could be network congestion, nearby Wi-Fi interference, or a provider issue that appears during busy periods.

Try opening the same website on another phone or computer while the problem is happening. If that device works normally, start with the affected device. If both lose access, investigate the shared network.

2. Check whether the Wi-Fi signal is actually weak

A device can show a connected Wi-Fi status while the signal is too weak to maintain a reliable connection. Notice where the drops happen. If the internet becomes unstable in a bedroom or upstairs but works normally near the router, the likely problem is coverage or interference—not necessarily your provider's connection.

Move closer to the router and test again. If the connection becomes stable, try placing the router in an open, central location, off the floor and away from thick walls and appliances such as microwaves. For more ways to identify dead zones and improve coverage, see our guide to improving a weak Wi-Fi signal at home.

The two common Wi-Fi bands behave differently. 2.4 GHz generally reaches farther but is more likely to face congestion, while 5 GHz can provide faster speeds at shorter distances. If your router offers both, test the other band where possible. A connection that fails only in one area or on one band points toward a wireless coverage or interference problem.

3. Try the quick fixes before changing settings

1. Restart the modem and router properly. Unplug both for about 30 seconds. Plug in the modem first and wait for its connection lights to settle, then power on the router. If the devices are combined into one unit, simply restart that unit.
2. Check the cables. Make sure Ethernet, coaxial, or phone-line cables are firmly connected and not visibly damaged.
3. Check for an outage. Look at your internet provider's service-status page or app before changing settings.
4. Reduce network load temporarily. Pause large downloads or streaming on other devices. If the connection stabilizes, the router or plan may be struggling with demand.

Give the connection a few minutes after restarting. If it continues to drop, note whether the modem's internet or signal light goes out or repeatedly flashes. That detail can help distinguish a line problem from a Wi-Fi problem.

4. Fix a device that keeps disconnecting

If other devices remain online, work through these checks on the affected device.

• Reconnect to Wi-Fi. Forget the saved network, then join it again using the correct password. This can clear a damaged saved network profile.
• Install updates. On Windows, run Windows Update and check the computer manufacturer's support page for a newer Wi-Fi driver. Keep macOS or your phone's operating system updated too.
• Check Windows power settings. Open Device Manager, expand Network adapters, and open the Wi-Fi adapter's Properties. If a Power Management tab is available, untick the option that allows Windows to turn off the device to save power. The setting is not present on every adapter.
• Use built-in diagnostics. On a Mac, hold Option while clicking the Wi-Fi menu to view connection details, or open Wireless Diagnostics. On a phone, turn Airplane mode on for about ten seconds, then turn it off.

Refresh the IP address on Windows

If basic checks have not helped and Windows appears to have trouble obtaining or renewing its network address, you can ask it to request a fresh IP address from the router. This may help with an IP configuration issue, but it will not fix weak Wi-Fi coverage or an outage from your provider.

1. Search for Command Prompt and open it.
2. Enter ipconfig /release and press Enter.
3. Then enter ipconfig /renew and press Enter.
4. Wait for the command to finish, then test the connection again.

If Windows reports that the command cannot run for the current adapter, or the connection does not improve, do not keep repeating it. Continue with the other checks instead.

Use a full network reset only after simpler steps fail. On Windows 11, go to Settings > Network & internet > Advanced network settings > Network reset. This removes saved network connections and may affect VPN settings. On an iPhone, Reset Network Settings removes saved Wi-Fi passwords and resets network-related settings, so consider that before proceeding.

5. If several devices disconnect, check the router

When the issue affects multiple devices, look at the router rather than resetting each device individually.

• Try another Wi-Fi channel. Nearby networks using the same channel can interfere. Try the router's automatic channel option first; otherwise, use its settings page to select a less crowded channel.
• Update the router firmware. Check the manufacturer's instructions or your provider's app for updates. Never unplug the router during an update, because interrupting it can make the device unusable.
• Test with fewer connected devices. Temporarily pause heavy downloads or disconnect devices that are not in use. If that helps, the router may be struggling with the amount of traffic.

A router's age alone does not prove it needs replacing. Consider an upgrade if it regularly fails, no longer receives security updates, cannot handle your household's needs, or still causes problems after the connection and settings have been checked.

6. Test whether the internet line is dropping

If possible, connect a computer to the router with an Ethernet cable and use the connection for a while. A wired test removes Wi-Fi signal strength from the equation. If the wired connection also drops, the problem may be the router, modem, or provider's line. If Ethernet stays stable while Wi-Fi fails, focus on wireless coverage, interference, or router Wi-Fi settings.

If you need help testing a wired connection, follow our guide to troubleshooting an Ethernet cable that is not working.

Check the modem's status lights as well. A persistent signal or internet warning can indicate a line fault, although the meaning of each light varies by model. If the provider reports no outage but the wired connection still drops, contact support and tell them when the drops occur, what the lights show, and whether Ethernet is affected.

7. Leave a factory reset as a last resort

Factory-resetting the router erases its custom settings, including the Wi-Fi name and password. Depending on your provider, you may also need connection details to get back online. Check the router manual and make sure you have the necessary setup information before using its reset button. A normal restart is not the same as a factory reset.

When to contact your internet provider

• Several devices disconnect at the same time, including over Ethernet.
• The modem repeatedly shows a signal or internet fault.
• The connection continues to drop after restarting the equipment and checking cables.
• The problem began after a service change or provider visit.

Tell support which tests you performed and what happened. That gives them a more useful starting point than simply reporting that the internet is unreliable.

What to do next

Start by checking whether one device or the whole network is affected. Test the Wi-Fi signal near the router, restart the equipment in the correct order, and use Ethernet if possible to separate wireless problems from line faults. Only move on to IP commands, network resets, or a router factory reset when the earlier checks point in that direction.