No internet connection but a strong signal

What about your phone? Does it work for the phone? If not, then you might need to check the internet connection. Sometimes the router shows strong signal but actually not connected to the Internet. If the Internet works for your phone, then check the wifi settings on your iPad. Select another channel if possible. Or reset the wireless setting and try again. If all fails, try to use this iPad on another wifi spot and see whether there is a problem with the wireless card with it.

The operating system is corrupted, please reload the system.

A Belkin router doesn't usually force the utilities page on you. I would advise checking your start page - you might have set it to your router's homepage by accident.

Just a thought: try to remove the group key renewal timeout (e.g. set it o 0 (zero)), in the router's wireless security settings.
Just my 2 cents... Carlos

Try reinstalling the Wireless LAN driver

it looks like wireless card in the laptops need to be changed.

please open a comand prompt and try to release the ip and renew the ip. check is the Ip changing.

or

turn on the DHCP in your router.,. so the router will give an ip to you pc

Your router may be configured to "connect on demand". Enable the setting called something like "Keep Alive"

check your ip adreses
it is range of router

signal loss, what is distance coverage by your ISP?check to ensure your device works in another location.