From the details provided, it appears that your modem has the latest firmware version.
There are different types of dropouts that you may experience:
1. Network dropouts, this dropout is caused by a line fault on TPG or NBN's network. Affecting all device(s) LAN/Wireless connected to the modem/router this may require a real-time test and investigation by our Technicians and Engineers.
2. Wireless dropouts, this issue only affects the device(s) connected via Wi-Fi which can easily be fix by doing adjustment to the modem/router's settings.
3. Dropouts caused by ongoing outage in your area.
In the event that you experience dropouts via Wireless/Wi-Fi connection, we recommend having a read on the following articles:
If the issue persists, please send your Customer ID or username via PM in order for us to check the status of your service.