Telstra’s nationwide outage is traced to a faulty internal GPS card, according to an internal audit cited by outlets. The card incorrectly records the year as 2006, which then triggers failures that spread across Telstra’s network.

The reported audit details that the incorrect date setting leads to “catastrophic” impacts as the issue propagates through systems that rely on the GPS card for timing or synchronization. Both sources describe the same underlying cause and the same mechanism: a wrong year value on the GPS component results in broad disruption rather than a localized fault.

While the outlets focus on different wordings, they agree on the key point that the outage is linked to the misconfigured GPS card and not, for example, to an external cyber incident or separate hardware failure. The audit’s findings are presented as an explanation of why the problem escalated network-wide instead of remaining contained.