So whenever my internet is not working I observe that the internet light on my modem keeps on blinking. But both the pc connection and wifi light doesn't blink, that means no one is using the net. I know that when it happens maybe isp is checking if my ip address is in use (But it happens several times in a day, so that couldn't be right, right?) or something related to bot-nets is happening. But the problem is that I am unable to surf the net and have to restart the modem to use it again. It happens many times a day and that is somewhat fishy. What could be the reason for this and if there is any possible solution.