So, in that case, you should focus on Switch.
Its a good idea first to restart it.
If it doesnt help, you should check your console online grid controls.
Valeriy Odintsov
If you cant connect to Wi-Fi from all devices, start your router.
If the Internet doesnt appear after that, resetting the router to its factory defaults wont be a mistake.
Generally, if none of the above help, the problem is on your ISPs side.
So it will be better to contact them for help.
Test your connection by connecting other devices, such as smartphones or laptops, to the same web connection.
If those devices can connect without issues, move on to the next step.
Step 2: Power cycle your Switch
Sometimes, a simple power cycle can solve connectivity problems.
Also, ensure that Flight Mode is disabled.
see to it you have the necessary information and access credentials before performing a reset.
If none of the above steps work, there may be an issue with your internet service provider.
Reach out to your ISPs customer support and describe the problem youre experiencing.
They can help troubleshoot and determine if any web connection-related issues may affect your Nintendo Switchs connectivity.