The Customs Brokers and Freight Forwarders Federation is calling on Auckland Council to step in and resolve the industrial dispute at Ports of Auckland.
About 300 members of the Maritime Union began a 48-hour strike at the Ports of Auckland at 11pm on Monday, the fifth strike since November.
They are refusing to adopt a flexible roster which the port wants to introduce in exchange for a 10% pay rise and other benefits.
The Federation says it is time for the council to sort what it a mess or sell the port to someone who will run it properly.
It says it is not good enough for the city's mayor, Len Brown, to say he supports both sides in the dispute, because the council owns 100 per cent of the port company.