My NBN keeps dropping out. I have to restart it every time to get it back.  Sometimes I have to reconnect the coaxial cable to the NBN box and to the incoming connector.  Sometimes I have to push the reset button on the NBN box but whatever I do, the connection may only come back for a short period of time, say 15 minutes to an hour and it drop out again. I have changed the coaxial cable to a new one but it doesn't improve. I have no tools to check the NBN Box myself.  Can I get a technician to come and check it for me? ... View more