Broadband services are returning for hundreds of thousands of Telecom customers following an outage this morning.
The issue was resolved about 8am, Telecom said in a statement, however customers may experience trouble browsing or using the internet due to the volume of customer modems trying to reconnect.
"We apologise for the inconvenience caused by this outage, which occurred when a problem arose during a scheduled software upgrade on one of our main internet servers."
Earlier, Telecom spokesperson Andrew Pirie said broadband was cut to about two-thirds of the company's 400,000 broadband customers after an outage overnight.
Pirie said there was also an unknown number of Eftpos New Zealand customers affected by the outage, he said.