At the half-yearly results announcement on Monday, Morrow said the issues with the HFC rollout, which led to the company putting such connections on hold in December last year, were technology-related and would be sorted.
He stressed that HFC was a vital component of the technology mix and it would proceed as indicated after the problems were sorted out.
Last month, iTWire reported that at least two suburbs in Melbourne had been switched from HFC to other technologies.
The company then announced in December that houses and businesses slated to receive the NBN over HFC would have to wait between six and nine months longer for connections.
Under the revised rollout plan, put in place after the Coalition Government came to power in 2013, the NBN Co planned to use both the Telstra and Optus HFC networks as a means of delivering the NBN, in order speed up the rollout.
The Optus HFC network was later found to be in an unusable state and its use was discontinued. The Telstra HFC network was used until the cessation of connections in December 2017.
iTWire asked the company for clarification at the time, but there was no response.