Aoverles
This has happened to a few ppl I know.
I can not verify the validity of how they fixed it, as it did not happen to me, but I will list some of the solutions or explanations they gave.
"Australia players have a issue viewing the server list" = do not know the reasons why this would be, but it might be a region issue... try playing with a vpn in place and see if that helps you see the server list. If it works, you have some kind of firewall on pc, router or ISP that is blocking / preventing communication with plutonium servers to see the list.
If you have too many antivirus or anti malware programs on your computer - it could be interfering with plutonium working properly or downloading all the files it needs to run. Windows Firewall and Anti-virus program is sufficient for most people these days. If you need to run extra. I would recommend running them then uninstalling them when you are finished cleaning your pc. Examples of these extra programs would be AVG antivirus, McAfee, MalwareBytes, CCleaner etc.
Make exception in your windows antivirus for C:\Users<username>\AppData\Local\Plutonium and....where ever the game is installed
Good luck, hope that helps