HBCI (Home Banking Computer Interface), is a bank-independent protocol for online banking, developed and used by German banks. If your bank is using this technology you may notice that your connections are not functioning properly. At present there are some technical issues with all the providers using this technology. Currently our developers are working on a task that should drastically improve the general connectivity and planning on a major fix for how we handle HBCI providers (all of them). We are sorry for this inconvenience, and ask for your patience with this fix.
UPDATE 5/12: We are still working on it! We appreciate your continued patience. Our developers are collaborating with our banking team to build a resolution.