Service providers and fibre companies such as Chorus, shared information on what stage installations were at, but that information would not always be up to date, Young said.
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• Tangled fibre maze for apartment broadband
"There's an ongoing issue, it seems, with the interface between the fibre companies and the service providers in ensuring the data is up to date.
"The interface between those two organisations is not working as well it could be."
WATCH: Chorus-produced animation describing the installation process for UFB in a 'multi-dwelling' unit:
Herald readers have shared their struggles with getting connected to ultra-fast broadband.
Andrew Stanley lives in the Heritage Tower in Nelson Street, central Auckland. He said he was told last April that the apartment building was connected to the fibre network and each floor was connected. He then requested ultra-fast broadband from Vodafone in September, but is still not connected and won't be until April.
Keith Taylor, who moved into an apartment building on Auckland's North Shore last winter said he was able to connect to ultra-fast broadband through a "small and nimble" ISP within a week of moving in.
"We were the exception," he said.
"Almost every resident has stories of their battles to get connected."
Ian, who lives in a block of eight flats in Queenstown said it took six months and four scoping visits to have his flat connected the fibre network.
"I am tech savvy but still I was at the limit of my ability and I can't imagine what it must be like for those with limited understanding of UFB... and everything else.
"The planning process seems to be a dog's breakfast, and co-ordination is at a minimum - some workers did not know what had already been previously by others."
Industry representative Geoff Thorn, chief executive of the Telecommunications Forum, said the industry was "refining its processes", but denied a lack of communication as being the cause of difficulties in MDU installations.
Manager of consents and acquisition at Chorus, Mark Mayerhofler, said Chorus and ISPs maintain communication throughout the installation process and the most common difficulties arise during the consent process.