I have Optus AC800S for 6 months. First 5 Months internet was incredible.
The last month I receive "resolving host" issue constantly.
Its just impossible to browse normally, it disconnects each 2 minutes.
I tried to clear all data on Chrome (all other browsers same thing).
I configured google dns and austrlia dns on the router and computer. All resulted the same.
Solved! Solved: Go to Solution.
Please do a search of "AC800S" here on Yes Crowd and you'll come across several threads that should give you some more information and advice that you're after.
If not, you may need to contact Optus Technical Support for further assistance.