Internet dropouts

Level 1

Ever since we've installed TPG's NBN FTTN. It has been dropping out constantly throughout the day.The internet connection lights on the modem would turn off, but the lights on the dsl would stay lit up. During dropouts i would reset the modem which would usually work but multiple dropouts is extremely fustrating and want to fix this issue as fast as possible.I have tried troubleshooting methods on this forum and tpg's troubleshooting instructions. How can i fix this?