That happens because your device is not online, and that can happen due to incorrect APN settings. Follow all the below steps on the watch:
Wireless Settings
Step 1
Press side button and swipe to the left and tap ‘More’
Step 2
Tap on 'Settings'
Step 3
On the option 'Wireless', make sure it's OFF
Mobile Networks
Step 1
Press side button and swipe to the left and tap ‘More'
Step 2
Tap on 'Settings'
Step 3
Tap on 'Mobile Networks'
Step 4
On 'Data Roaming' - make sure it's ON and go back to 'Mobile Networks' (you can follow steps 1-3 again)
Step 5
On 'VoLTE' - make sure it's OFF and go back to 'Mobile Networks' (you can follow steps 1-3 again)
Step 6
On 'APN' - Change the APN name/settings to telstra.internet (if you are with Telstra)
Note: Common Australian APN based on network providers:
- ALDI Mobile - mdata.net.au
- Vodafone - ive.vodafone.com
- Telstra - telstra.internet
- Optus - Yesinternet
- Boost Mobile - Boost_Mobile