By john 
After the power comes back, it is common to find the internet still down even though everything is switched on. The cause is usually equipment that did not restart cleanly rather than a lasting fault. A few steps in the right order normally bring your connection TOTAL4D Resmi back.
Possible Causes
Routers and modems sometimes fail to reconnect properly after a sudden power loss, leaving them in a confused state. The provider’s equipment in your area may also still be recovering from the same outage.
Occasionally a power surge during the outage affects the equipment, or cables work loose, though a clean restart usually resolves the common cases.
First Troubleshooting Steps
Power off your router, and your modem if you have a separate one, by unplugging them completely. Wait about a minute, then plug the modem back in first, let it fully start, and only then power on the router.
This ordered restart gives the equipment a clean reconnection and resolves most post-outage problems.
Advanced Steps
Check whether your provider is reporting that the outage in your area is still affecting service, since their equipment may need time to recover. Confirm all cables are firmly connected, as a surge or knock can loosen them.
If your equipment shows warning lights after restarting, the manual explains what each means and whether the line is the problem.
It is also worth checking whether your equipment has a small battery backup or settings that need time to restore after losing power, since some take several minutes to fully recover. Giving the equipment a little patience after the ordered restart, rather than power-cycling it repeatedly, often lets it settle and reconnect on its own.
Safety and Data Warning
If you suspect a power surge during the outage, check that the equipment is not damaged or hot before relying on it, and consider a surge protector for the future. Do not open the equipment or tamper with the line, and contact your provider for anything beyond a restart.
When to See a Technician
If the internet stays down after an ordered restart and the area outage has ended, contact your provider. They can test the line and equipment remotely, and replace a router or modem that was damaged during the outage, which is a common cause of a connection that will not return.
Conclusion
Most cases of no internet after a power outage come from equipment that did not restart cleanly. An ordered restart of the modem and then the router restores the connection in most cases, with your provider able to help if the outage damaged the equipment.