We advise customers to check their location if their service is affected by an outage before performing any troubleshooting.
Check it here:
If not, are you using a WiFi or a Wired connection? If via WiFi, then signal interference might be causing the dropouts.
We've created some articles that may help improve your home WiFi network.
If you still need assistance, shoot me a PM with your TPG username or customer ID number.