No connection after lightning and thunder

There's ALWAYS the chance of damage.

If you have reset both the router and the cable modem and it still doesn't work, bypass the router and try connecting the system directly to the Cable/DSL modem. If your computer works in that situation the router has been affected, double check your connections between modem & router AND between router and computer.

If you still cannot connect, call your internet provider and inquire re: system status in your area. If all is good ask them if they can 'see' your modem. They will check their equipment to see if your modem is connected and communicating with their system. If they don't find it the modem is suspect.

If they can see the modem but you are still unable to connect to the internet via the router/switch, then the router/switch is the culprit.

Of course this all assumes everthing is OK with your computer. Otherwise this becomes a much larger troubleshooting issue. But let's not go there yet.

BIG TIP: Invest in a lightweight UPS or a line conditioner, particularly one that will protect your inbound Internet connection (coax or phone line) as well as the Ethernet port protection you need. In the end it's a LOT cheaper than replacing lightning damaged hardware.

Surge Protectors are of limited value because a majority (80% or more) of all power related electronic issues, especially regarding solid state circuitry, is due to BROWNOUTS, not surges. Something the manufacturers of surge suppression strips & related hardware are reluctant to admit, but that's why they can reliably afford to insure their surge protectors for ridiculous sums.

Apply this same principle to home entertainment systems, tv's (especially LCD & Plasma), game consoles, and any other valuable home electronics.