I have the newest version of eclipse ide for java (Mars 0.2) plus subclipse plugin (1.18 version of client). One check out from repository works the another one dont. When I try to add new project from svn, it stucked up on Message 'Getting remote project info', and than after 5 minutes ends with Folder - does not exists remotely. I checked access through web browser and it works. Versions below

Are they the same repositories?
A couple things to keep in mind in regards to browsers:
Other than those suggestions it is hard to provide much more of an answer based on the information that was given.