If you are using SVN and want to do an usual update you might encounter this error:
Server sent unexpected return value (403 Forbidden) in response to OPTIONS
Server sent unexpected return value (403 Forbidden) in response to OPTIONS
The problem was that the SVN client has in cache an username and a password which might no longer be available. Try instead of the simple svn update to force the update with the username and password that you have (and you know they should work)
Solution: svn update --username yourusername --password yourpassword
This should solve it :)
