
How to Fix a Router That Keeps Rebooting On Its Own
Your router randomly restarts throughout the day, killing your internet connection - here's how to stop those automatic reboots.
What's Happening
You're in the middle of a video call or streaming a show when suddenly all the lights on your router go off, then slowly come back on. Everyone loses internet for 2-3 minutes while the router restarts. This might happen once a day or multiple times per hour. Random router reboots are incredibly disruptive, and they usually signal one of a few specific problems: overheating, power issues, firmware bugs, or hardware failure. Let's track down the cause and fix it.
Quick Checks (Do These First)
- Feel the router. Is it very hot to the touch? Heat is the #1 cause of automatic reboots.
- Check the power adapter. Is it loose, damaged, or the wrong adapter for this router?
- Look for patterns. Does it reboot at the same time daily? When you use certain devices? During heavy internet use?
- Try a different outlet. Power fluctuations can cause reboots. Avoid power strips if possible.
- Check for scheduled reboots. Some routers have auto-reboot settings enabled by default.
Step-by-Step Fixes
Fix 1: Check for Scheduled Auto-Reboot Settings
Many routers have a "scheduled reboot" feature that's sometimes enabled without you knowing.
- Log into your router admin page (usually 192.168.1.1 or 192.168.0.1)
- Look for Administration, Management, or System Tools
- Find Reboot Schedule, Auto Reboot, or Scheduled Tasks
- If it's enabled and set to daily or weekly reboots, disable it
- Save your changes
Note: If reboots were happening at exactly the same time each day (like 3:00 AM), this was probably the cause.
Fix 2: Fix Overheating Issues
Routers automatically reboot when they get too hot to prevent permanent damage.
- Move the router to an open, well-ventilated location
- Remove it from any cabinets, drawers, or enclosed spaces
- Give it at least 6 inches of clearance on all sides
- Don't stack it with cable boxes, game consoles, or other heat-producing devices
- Gently clean dust from the vents using compressed air or a vacuum on low
- Keep it away from direct sunlight, radiators, or heat vents
- If it still runs very hot, point a small fan at it
Wait several hours after improving ventilation to see if reboots stop.
Fix 3: Check and Replace the Power Adapter
A failing power adapter delivers inconsistent power, causing random reboots.
- Inspect the power cable for:
- Fraying, cuts, or exposed wires
- Bent or damaged connector pins
- Burn marks or unusual odors
- Check that it's firmly plugged into both the router and wall outlet
- Verify you're using the original power adapter that came with the router
- Check the voltage/amperage printed on both the router and adapter - they must match
- Try plugging directly into a wall outlet (not a power strip or surge protector)
- If you suspect the adapter, try borrowing one from an identical router model, or contact the manufacturer for a replacement
Fix 4: Update Router Firmware
Firmware bugs can cause stability issues and random crashes.
- Log into your router settings
- Navigate to Firmware Update, System Update, or Administration
- Click Check for Updates
- If an update is available:
- Read the release notes for mentions of "stability fixes" or "crash fixes"
- Click Update and wait patiently
- Do NOT interrupt the update or unplug the router
- After the update completes and the router restarts, monitor it for 24-48 hours
Fix 5: Reduce Network Load
Budget routers can crash when overwhelmed by too many devices or heavy bandwidth use.
- In router settings, check Connected Devices
- If you have 20+ devices connected, that might be too much for your router to handle
- Disconnect devices you're not actively using
- Limit simultaneous 4K streaming, large downloads, and online gaming
- Consider enabling QoS (Quality of Service) to prioritize critical devices:
- Find QoS Settings in your router admin
- Prioritize work computers and devices used for calls
If reducing load stops the reboots, your router may be underpowered for your household needs.
Fix 6: Factory Reset the Router
Corrupted settings can cause instability. A factory reset clears everything.
- Write down your WiFi network name, password, and any important custom settings
- Locate the reset button (usually a small pinhole on the back)
- Use a paperclip to press and hold for 10-15 seconds
- Wait for all lights to flash and the router to fully restart
- Set up your network again from scratch
- Monitor for reboots over the next few days
Fix 7: Check ISP Modem Connection
Sometimes the issue is actually the modem (not the router) causing network disruptions that force router reboots.
- Bypass your router temporarily by connecting a computer directly to the modem via Ethernet
- Monitor if the internet connection stays stable
- If you still see disconnections, contact your ISP - the modem or line might have issues
- If the direct connection is stable, the problem is definitely your router
If Nothing Worked
If your router still reboots randomly after trying all these fixes, it's likely experiencing hardware failure. Routers typically last 3-5 years, and components like capacitors can fail, causing crashes. Other signs of hardware failure include LEDs that flicker strangely, ports that don't work, or the router feeling extremely hot even in open air. It might be time to replace it.
When to Call a Pro
If reboots happen multiple times per day and disrupt work or school, get professional help quickly. A tech can test your router with diagnostic tools, check your power supply and electrical outlets, verify ISP connection quality, and help you choose a replacement if needed. For businesses or households with critical connectivity needs, this isn't worth troubleshooting for days.
Need Professional Help?
If you're in the Tampa Bay area and need hands-on assistance, Geeks in Sneaks provides friendly, on-site tech support in Clearwater, Clearwater Beach, and Dunedin.
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