Welcome to the Community!
I've located your account using your Community details and checked on the status of the connection. It showed that there was a network maintenance performed yesterday which might have caused the issue on your end. It was also fixed on the same day.
Should you still require additional assistance, please feel free to let us know so we can have our Technical Team to contact and perform troubleshooting along with you.
I have performed a reset on the line so you might notice a drop on the connection but it should still work fine afterwards.
We will arrange a call from our Tech team today between 2PM - 3PM QLD time to check on this further as we are not able to detect any fault within the NBN network.
If you have any preferred time to receive a call today, please let us know.
We requested for our Tech team to contact you between 10AM - 11AM today as requested on your other post.
Please make sure that your phone is with you within the time frame.
We have received your post and we have likewise replied to it. You may check our response here: https://community.tpg.com.au/t5/Broadband-Internet/Not-getting-anywhere-near-the-speeds-I-m-paying-f...
Let us know if we can be of any assistance.