When every device loses internet at once, the router or modem has usually lost the provider connection. The Internet, WAN, or Online light can tell you whether the connection is off, red, blinking, or established.
Does this affect you?
Use this when all phones, computers, and TVs lose internet at the same time and the router internet light is not solid in its normal connected color.
Power cycle modem and router properly
Order and waiting time matter.
- Unplug the modem first. If you have one combined gateway, unplug that one device.
- Unplug the separate router too if you have one.
- Wait a full 60 seconds.
- Plug the modem back in first and wait 2 to 3 minutes for stable lights.
- Plug the router back in and wait 1 to 2 minutes.
- Check whether the Internet/WAN light becomes solid.
Check cables and lights
Loose WAN and wall cables are common.
- Check the cable from wall to modem: coax, phone line, or fiber. Make sure it is fully seated or screwed in.
- Check the Ethernet cable between modem and router if they are separate.
- Read the Internet/WAN light. Off often means no signal. Solid red often means the device sees something but cannot connect. Blinking during startup is normal; blinking forever usually means it is still failing.
- Swap the modem-to-router Ethernet cable if you have a spare.
Confirm provider status
Sometimes the router is fine and service is down upstream.
- Use mobile data to check your provider outage map or app.
- Look for texts or emails about maintenance.
- Call support and ask them to check signal levels to your modem.
- Ask whether they can send a refresh signal or remotely restart the line if no outage is listed.
More control
Double NAT can cause strange issues
An ISP gateway plus your own router can create two routing layers. Put the provider gateway into bridge mode where possible so only one router manages the network.
New routers may need MAC registration or cloning
Some providers bind service to the first device MAC address. If a new router will not connect, use Clone MAC Address or ask the provider to register the new device.
Old equipment may need firmware or replacement
Provider upgrades can expose old modem or router limitations. Check firmware updates and approved-device lists if connection problems persist.
Sources
- FCC Consumer Guide – Wireless Network Troubleshooting (2024)
- Netgear Support – Router shows no internet connection (2025)
- Comcast Xfinity Support – Fix an internet outage (2025)