"Telstra had a nation-wide network outage last week that affected emergency
services.
The outage has been pinned on an obsolete Symmetricom SyncServer S300 node,
which manages time on the network but resets its 10-bit week counter to
zero every 1024 weeks (just under 20 years) in a common and well understood
GPS rollover bug that caused the device to reset to 2006.
The SyncServer S300 was discontinued in 2016."
Cheers,
Luke Thompson, CTO
The Network Crew P/L
E: [email protected]
https://tnc.works
On 9 July 2026 7:21:52 am Greg Price <[email protected]> wrote:
The stuff I've read and heard is that it was a software update across
multiple systems that provide the reference sources from GNSS that went
wrong causing the the reference date/time to jump back decades, and the
wheels fall off. This is from the patchwork of sources, but I'd like to
hear it definitively from engineers.
On 9 Jul 2026, at 7:12 am, Phillip Grasso <[email protected]> wrote:
Do you think it was related to software patching breaking time services? (NTP?)
On Wed, 8 July 2026, 2:48 pm DaZZa, <[email protected]> wrote:
To paraphrase an oft-repeated meme
It's not NTP
There's no way it's NTP
It was NTP
Bets on this just being a speculator to take the heat off until they
find out what really went wrong?
D
On Wed, 8 Jul 2026 at 14:34, Luke Thompson <[email protected]> wrote:
Telstra's CFO has pointed to time / NTP:
https://www.theguardian.com/australia-news/2026/jul/08/telstra-outage-down-network-mobile-outages-today
Seems just over 4 hours of impact, and so far they're unsure what caused it.
Cheers,
Luke Thompson, CTO
The Network Crew P/L
E: [email protected]
https://tnc.works
On 8 July 2026 8:43:01 am Luke Thompson <[email protected]> wrote:
& likewise, service restored at the moment.
Cheers,
Luke Thompson, CTO
The Network Crew P/L
[email protected]
https://tnc.works
On 8/7/2026 8:40 am, [email protected] wrote:
Good morning
Back here. Regional Vic Boost and T prepaid mobile data.
----- Original message -----
From: [email protected]
To: [email protected]
Subject: [AusNOG] Telstra outage?
Date: Wednesday, 8 July 2026 7:44 AM
G'day.
How is T where you are?
Regional Vic Boost network no calls other than emergency can be made.
Cheers
Laurie
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