Unsure if posting in right section. I’ve had Telstra nbn couple of years, all great. Until past 10 days, no access to internet until early am, ie 1-7am, tonight an exception just after 11pm. 2 phone calls to Telstra, response 1, an outage, actually no outage. Today phone call, response no outage (which I knew), but something like circular hole, I think. Person on phone unable to explain why I get internet at described hours above & not other times.. NBN tech booked, have to be off work 4 hours Tuesday as unable to give me time of appointment. I like to understand when something worked, then doesn’t, finding this perplexing.