Wi-Fi keeps disconnecting: how to narrow down the cause

First find out what drops: the wireless connection, internet access or just one device.

The answer in 2 lines. If a wired computer stays online while wireless devices disconnect, focus on Wi-Fi and the affected devices. If wired access also fails, investigate the router, modem and internet service together. Restart equipment according to its instructions, check for updates and compare performance near the router. Repeated disconnections do not automatically prove interference or a faulty outside line. Keep a short incident log so support has something concrete to investigate.

Narrow down the problem

When the problem happens, check another device. Note whether the Wi-Fi network disappears, the device disconnects, or it stays connected without internet access.
If available, keep a computer connected to the router by Ethernet for comparison. Test an internet activity on it when wireless access fails.
Restart the affected device and follow the router's documented restart procedure. A normal restart and a factory reset are different actions.
Record the room, activity, equipment lights and whether the router appeared to restart. Avoid changing settings before collecting a useful comparison.

Stop: danger

Electrical damage: stop using equipment with a damaged cord, sparking connection or smoking adapter. Do not open the enclosure or attempt a power-supply repair.
Outside cables: leave fallen or damaged cables alone. Report them using the service contact on your bill instead of trying to reconnect them.

Compare locations before changing settings

Try the affected device near the router, then in the room where it disconnects. Repeat with another device if possible. A problem limited to one room points toward coverage or local conditions; a problem affecting one device everywhere deserves device-specific troubleshooting.

Place the router in an open location where its ventilation openings remain clear, following its installation instructions. Avoid stacking equipment or stretching connections to move it. If a fiber connection or installed cable prevents safe relocation, ask support about suitable options.

The FCC home-network guide discusses shared wireless demand and neighboring networks. Read its in-home connectivity section when deciding what to compare. An evening pattern alone cannot identify the cause.

What not to do

Assuming a neighbor is interfering deliberately because your connection drops.
Installing more wireless equipment before checking whether the main router or internet connection is restarting.
Turning off encryption or the firewall to see whether the connection becomes more stable.
Factory-resetting provider equipment without the instructions needed to restore service.

Change settings carefully

Check device updates and ask whether your provider manages router updates automatically. The FTC home Wi-Fi guidance explains why router updates matter; use its update section to identify whether the provider or equipment manufacturer supplies them.

If your router offers different wireless bands, compare an available alternative using the equipment's documented instructions. The FCC guide describes the coverage and performance differences between 2.4 GHz and 5 GHz. Neither is universally better for every room or device.

For channel selection, start with the supported automatic setting or ask support for the recommended configuration. Save the previous setting before an experiment. Do not copy regional radio settings from an overseas tutorial or alter advanced options you cannot restore.

When to contact support

Contact support when the router restarts unexpectedly, wired access also fails, or wireless devices keep dropping close to the router. Describe the pattern rather than announcing that the line is definitely faulty. Ask which diagnostics can distinguish service interruptions from equipment failures and whether replacement equipment would incur a charge.

For provider-supplied equipment, repair and replacement arrangements depend on your agreement. For building-managed service, give the building contact your incident log and ask who controls the equipment.

If your provider does not resolve the service issue, use the FCC Consumer Complaint Center: select Internet Service Issues and submit the relevant equipment or service details. Read the FCC complaint questions and answers to understand the process. Keep copies of your submission and correspondence. Credits and other remedies depend on the contract and applicable state rules.

Good to know

A device showing a Wi-Fi symbol may still lack internet access. Record both observations.
One failed website or call does not establish that the whole connection dropped. Try another activity before logging a household outage.
If a setting helps, leave it in place and observe normal use before making another change.

Illustrative example: Casey in Wisconsin thinks the Wi-Fi fails every evening. During the next incident, a wired laptop also loses access and the gateway lights change. Casey gives support the incident log and asks for equipment and service diagnostics instead of buying an extender.

A made-up story, for illustration.

Bobby

Sources, verification, confidence

Verified on November 5, 2026, for the United States. Confidence: high for separating wireless symptoms from broader service interruptions and locating official complaint guidance; medium for possible causes and settings, which depend on equipment and the home.