The connection stops often,the light of internet is trempling all the time

Modem light flashing can be a sign of normal use. If you look under each modem light it will give a word that tells your what that light does. You can look that up in your manual. There are many things that cancause you to loose internet but if you could provide a littl more information I may help to get you the correct answer What is the model number of the modem and do you also have a router. If you have a router also then the make and model of that woud also be useful Modem light flashing can be a sign of normal use. If you look under each modem light it will give a word that tells your what that light does. You can look that up in your manual. There are many things that cancause you to loose internet but if you could provide a littl more information I may help to get you the correct answer What is the model number of the modem and do you also have a router. If you have a router also then the make and model of that woud also be useful