I am using svn+ssh to connect to svn repository, which in turns uses unix usernames and passwords for authentication. Everything works fine.
However, I also have a checked out version of a repository on the same server on which repository is hosted. And when I try to commit changes made to this version of repository using the same user which works fine over svn+ssh, I get an "Authentication failed" error. On the other hand updating works fine.
What could be the issue?