What seems to be my problem?

So for around a week now my Internet goes in an out repetedly from around 12:00 pm and doesnt become stable all the way till around 1:00 am we contacted services, they gave us a new modem router, didnt work, they checked inside our house see if any cables where messed up, didnt work and just yesterday another person came to check the big wooden pole holding the cables and said that the problem was we where just to far from the cabinet box thing. said we where a few hundred feet too far and said that there was one wire attached from their to our house and to fix it, they will install two wires. so i need to know if that was the problem, why has my internet started to fail me now? nothing weather related has happened its just very hot ouside but thats all if any one has any other solutions please help