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Australian Navy Ship Disrupts NZ Internet and Radio Services

  • While approaching Wellington on Wednesday, HMAS Canberra, the largest ship in the Australian navy, inadvertently caused interruptions to wireless internet and radio communications in parts of New Zealand.
  • The interference occurred because the ship's full-scale, military-grade navigation radar operated on shared 5GHz frequencies used by wireless access points, triggering built-in safety protocols in affected devices.
  • The radar interference affected regions on both North and South Islands, notably Taranaki and Marlborough, causing widespread service interruptions reported by local internet providers as early as 2am.
  • Matthew Harrison, managing director of ISP Primo in New Zealand, characterized the event as a striking example of the country’s vulnerable radio spectrum and noted that such an incident was unprecedented in his experience.
  • After New Zealand Defence Force alerted HMAS Canberra, the ship changed radar frequencies on Wednesday, which rectified interference and fully restored services before its scheduled arrival on Thursday.
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The good relations between the two countries are celebrated by having HMAS Canberra sail to Wellington, but the infrastructure was not prepared for this.

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As it approached the New Zealand coast, the Australian military ship HMAS Canberra caused an interruption of Internet connections in several parts of New Zealand. The Australian army admitted that it was the cause of the breakdown, as reported by The Guardian.The lead ship in the Canberra-class heliports entered New Zealand waters on Wednesday, June 4, before reaching Wellington, the capital, on Thursday, June 5. Shortly after 2:00 a.m., wireles…

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9News broke the news in Australia on Friday, June 6, 2025.
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