Initial - CHG0111548 - Planned maintenance affecting the AEMO Market Network.

Change Number: CHG0111548

Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: MarketNet
Change Title: Planned maintenance affecting the AEMO Market Network.
Change Start Date & Time: 06/07/2026 07:00:00
Change End Date & Time: 06/07/2026 18:00:00
Outage Start Date & Time: 
Outage End Date & Time: 
Environment: Production

Participant Impact and Requirements: Planned maintenance will be conducted on the 6th of July 2026, between 07:00AM and 05:00PM AEST on the core network infrastructure within the AEMO Market Network in Sydney. 

During the change, there will be two instances of 1-3 second service disruption to MarketNet Services accessed via Sydney as traffic moves from the active to the standby load balancing unit. All Services should return to normal after this time. Traffic via Brisbane will not be affected. AEMO recommends that all market participants with site to site VPN connections currently connected via Sydney, to switch these connections to the Brisbane site as a precaution.

Participants connecting via IPWAN and/or SSL VPN will be automatically connected to the Brisbane site and do not need to take any action.

Support Information:
Report any impacts to the AEMO Information and Support Hub or call 1300 236 600.
Please refer to https://aemo.service-now.com/participantportal?id=pp_services_status for any planned/unplanned maintenance activities.