Hello! Suddenly my internet has stopped working, on my router there are 5 lights. The power light is green and normal, receive light is blinking, send light is black and not appearing same with the online light. However the wireless light is green. Normally the blank ones are blue. Anyway I'm not too great with technical things but normally we just unplug the modem and wait to plug it back in. It says I have strong wifi on my phone but it doesn't work. Any advice will help, thank you!!