Have you tried a VPN connection to a US server? FWIW, Quicken is not supported for use outside of the US and Canada.
In case you're not aware, although your Quicken subscription allows you to download and use both the Windows and Mac versions of Quicken, you can't use them both on the same data; you'd need to have separate data files for each platform. There is a one-way conversion from Windows to Mac; the conversion from Mac to Windows doesn't really work (investment accounts don't transfer successfully).
FYI - Using Quicken outside of US/Canada is a roll of the dice. There have been many postings about “Bad Credentials” and other error situations…