Guided check
0/3 checkedMatch the symptom, then work through the safe checks.
1. What best matches what you observe?
2. Complete only the checks that are safe for you.
Update firmware or replace failing hardwareUse stable power and the exact model file.Professional
3 user-level checks are available in this guide.Stop immediately if any warning condition applies.
Show stop conditions
- The power adapter is hot, swollen, cracked, or smells burned
- Firmware update power is unstable
Likely causes
- The power adapter or outlet is unstable
- The router is overheating
- Firmware is crashing or corrupted
- A failing component or network loop triggers resets
Quick checks, in order
Observe the full light sequence
Confirm it is truly rebooting rather than only losing internet.
Use the original rated power adapter
Do not substitute voltage or polarity.
Improve ventilation and disconnect extra devices
Test with minimal Ethernet and USB connections.
Update firmware or replace failing hardware
Use stable power and the exact model file.
What happens during the outage?
All lights go out and restart
Power or a full device reboot is likely.
Wi-Fi stays on but internet light changes
The router may not be rebooting; the WAN link is dropping.
Restarts under heavy traffic
Heat, power, firmware, or hardware load is likely.
Stop and get qualified help when
Do not continue troubleshooting if any of these apply:
- The power adapter is hot, swollen, cracked, or smells burned
- Firmware update power is unstable
Frequently asked questions
Can too many devices reboot a router?
Load can expose weak hardware or firmware, but a healthy router should not repeatedly power-cycle.
Should I use another adapter?
Only one with the exact voltage, polarity, connector, and adequate current specified by the manufacturer.
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