I'm not sure if this is a problem with our network setup or browser but we have problems viewing GeoNet pages in both Firefox (v35) and IE11. The majority of content seems to display properly but on a lot of the menus we seem to get placeholder text (mostly starting with a k and followed by about 4 other characters). It can make it a bit confusing to work with the site as we have to hover over menus and check the URL to work out what it is!
Example using IE11
Example using Firefox (seems to be slightly worse as the word "in" under each of the spaces is replaced with "k1f18" instead)