The steam service isn't working.
The steam service isn't working.
It seems the NBN is likely ending support for that service. This isn't a joke—real issues have been reported. Have you tried checking on another network to access Steam? Also, keep in mind that Steam occasionally undergoes maintenance, which can cause downtime. You can monitor status via sites like http://downdetector.com/status/steam/map. Tools like Wireshark might help verify if login requests are being processed and rule out router or firewall blocks. If you're not nearby, feel free to share your experience with others in Australia.