Answer to "Lost internet connection from my router"You need to check your antivirus or firmware, because sometime firmware block internet connectivity. You must check that it is updated. You can do one more thing, forget all internet connection from control panel. restart your computer. Reset your Netgear router to default settings.
Answer to "Unable to connect to my router"@jayeff is right, you need to forget all previous network connections. Check your firmware is updated or not, Your computer window is also updated. Restart your computer as well as your router. Then connect to router. it will work.