Hi Shamaroo, apologies for the late reply.
You can view service status updates here. Depending on your connection type there are a few things you can try:
How To Troubleshoot Common Fixed Broadband (ADSL / Cable) Problems
How To Troubleshoot Speed Issues
How To Troubleshoot NBN Issues
Troubleshooting slow NBN connection speed
If you are still experiencing issues and not interruptions are listed at your location please contact us on 133 933 (ADSL/Cable), 1800 834 273 (NBN) or 1800 008 994 (Velocity).