1.Open Internet Explorer by clicking the Start button , and then clicking Internet Explorer.
2.Click the Tools button, and then click Internet Options.
3.Click the Privacy tab, and then move the slider to a position between the top and bottom so you are not blocking or allowing all cookies.
5.In the Address of website box, type a ecadata.de, and then click Allow.
As you type, a list of webpages that you have already visited will be displayed. You can click an item in the list and it will be displayed in the Address of website box.
7.Move the slider back to the position it was originally in, and then click OK.
more info from Microsoft
If you use the ECA database through the EURAS System, please close the ECA Database window and relogin from the EURAS site.