We have usually seen in everyday life that internet connectivity is always a heck when it comes in the case of Ethernet connectivity scenario. Whether it is written by some writer as a personal experience or basically it is based on the problems that almost every person on the earth mostly confront with it.
Situations can be different but Ethernet problems still raising until proper measures would be taken to get rid of this growing issue. Modem in that case lit up the green light whether internet is working or not. Internet proper coverage is only possible when the connections made are not faulty. Instead, if there is some errors in the whole wiring procedure in some building where the Ethernet is providing services through modem by wiring all around the house then it should be made sure that the connections between all around the house is properly attached otherwise inconvenience is still there.
Switches and wiring in this regard should be appropriate enough so that there will be no problem during work. If you are applying Ethernet in your house so it recommended to use new wires instead of old ones and try to pull them off carefully. By adopting this method there will be no problem of internet services ever because of long term planning before.