Hi @Tina_Zhang,   For customers experiencing any issues with their service, we recommend the best thing to do first is check if there's an outage affecting the network.   Check our Service Status at http://www.tpg.com.au/servicestatus for any known outages.   If you're on NBN, we have created this article that can guide you on How to Check for NBN Network Outage   If there are no known outages in your area, you can proceed with the troubleshooting steps indicated on this link : https://www.tpg.com.au/support/nbn-hfc-cable/problems_connect_internet_nbn_hfc   In your case, connection appears to be up and running, but please be advised that it may be interrupted as it is currently affected by an unplanned NBN network outage.   NBN Technicias are currently doing their best to rectify the issue as soon as possible. ... View more