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Technicolor TG789 vac V2 Modem setup issue

Level 1b

Service installation was done couple of days back but I am still not able to connect to internet. I am getting PPP negotiation failed error. Please advise if Technicolor TG789 vac V2 is compatible. I am using VCMUX encapsulation. Is this fine?


Hi augramesh


Welcome to TPG Community! 


I can see that our Engineering Team has raised the issue to Telstra. They are scheduled to check the service on or before 25 July 2018 and your attendance is not required. 


The issue is on the line so configuring the modem now will not work. Nevertheless, I'll list down the basic settings you can use for your modem. 

  • VPI/VCI: 8/35
  • Encapsulation: PPPoE (PPP over Ethernet) / LLC 
  • username and password: Your TPG account username & password 

You may also visit this link for reference: TPG ADSL2+ Settings


Should you have further queries, you may let us know here or simply respond to the SMS sent by our Engineering Team. 


We apologise for the inconvenience caused. 



Level 1b

I am facing the same issue, was this resolved?






Hi @miabhi0901,


Please see my initial respond to your post located here. about on how to setup Technicolor TG789.


Let me know how it will go.