www.dl2rum.de

I'm able to push and pull QSLs from eQSL and push new QSLs to LoTW but every time I select LoTW in I get:

Error downloading data

and I'm presented with the LoTW website login page. My call and password are set correctly and logging in within this window does nothing.

This web page is for your information only when something was going wrong. An interaction is not possible! Scroll through the window to find an error message.
A screen shoot would be helpful.

Error is Username/Password incorrect. However, I can use the same username/password to login via a web browser.

Some special characters may cause problems Make sure you use only characters and numbers in your password.

That was the problem. It is working now.