When trying to use the web-interface for the mail from our Exchange server, after the login the page keeps loading. Nothing happens, the browser page is empty. One by one this happened on all of our computers in the network, and now -after clearing the history- this happens on the last computer with which we could approach webmail. This happens on Chrome and Firefox; when we use Internet Explorer we can see the mail, but the pictures do not load. When I try to approach the settings nothing happens. It is becoming a big problem, because this happens also from the computers at home. With a tablet we get to see the mail, but again without the pictures (in Chrome).