Telstra suffered a domain name server (DNS) outage in NSW with a wide range of users reporting connectivity issues beginning around 5am.
Users reported technical resolution by switching to Google DNS.
“Some customers in New South Wales may be experiencing an issue connecting to their broadband and NBN services," a Telstra spokesperson told iTnews.
"We are working to fix this ASAP and apologise for any inconvenience.“
It is understood today's issue affected a far smaller subset of Telstra's user base.
Update, 9.57am: Telstra said the DNS issue has been resolved.