I have the following intermittent problem:-When i am connected to the internet the two green lights on the modem part of my router will go out and i will lose my connection.To clear the problem i have to either.reboot my router or go through the procedure of taking power lead out of router shut down my computer, plug mains lead back into router and then restart my computer.This problem started only happening very occasionally but is now getting more frequent. Is the modem part of my router faulty or could it be an intermittent fault with my ISP service