Unable to sync online
If I can't get to the app online, there is no reason to continue using the application. After trying several systems, several browsers, several different locations and even several OS's, I can't get to the server.
Did this service go away?
Please clarify - what platforms did you try exactly?
The easiest way Todoist allows you to access your tasks offline is through our mobile apps for Android and iPhone. Every other platform will require being online to log in, but will allow you to continue using Todoist offline if you disconnect.
On the web, you could clear Todoist's offline data, access it through http://todoist.com/app and if you're using Chrome, you could access this site offline as well.