Symptoms
- Wi-Fi disconnects and reconnects every few minutes
- Devices show 'connected, no internet' intermittently
- Drops happen more during high usage like streaming or gaming
- Router's lights flicker or change color when it drops
Likely causes
- CommonRouter overheatingRouters stuffed in cabinets or stacked with other devices can overheat and reset connections.
- CommonOutdated firmwareBugs in old firmware versions are a frequent cause of random disconnects.
- PossibleWireless channel congestionNeighboring Wi-Fi networks on the same channel can cause intermittent drops, especially in apartments.
- PossibleISP-side connection instabilityAn unstable internet line upstream of the router can look like Wi-Fi dropping.
- Less commonFailing router hardwareAn aging router's internal components can fail intermittently before failing completely.
What to do
- Feel whether the router is hot to the touch and move it to an open, ventilated spot away from other electronics.
- Restart the router and modem by unplugging both for 30 seconds.
- Check for and install any firmware update through the router's app or admin page.
- In the router's settings, switch the Wi-Fi channel to 'auto' or manually try a less congested channel if you're in a crowded building.
- Note whether drops happen on wired Ethernet devices too; if so, the problem is likely the internet connection, not Wi-Fi.
- Test with only one device connected to see if drops still occur, which points to the router itself rather than overload.
- If drops continue after these steps, contact your ISP to check the line, or consider replacing an older router.
Tools and parts
Replacement routerSearch: “dual band wifi router”
When to call a pro
If your ISP confirms the incoming line is stable and drops continue only on Wi-Fi, it's reasonable to replace the router.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.