Ubuntu Servers :: Webdav Access - When Connect From Nautilus - Says - Access Was Denied

I'm having a problem with my webdav share. I have a secure webdav folder that gets accessed via a non-standard port and requires basic authentication. I can connect and interact with it fine via cadaver. However, when I try to connect from nautilus, it says "Access was denied." To make it even stranger, sometimes I can click on the folder in nautilus (it still mounts) and access it. Sometimes not (just repeats the error message and won't show me the contents). I may not even un-mount it, but just look at other folder, then click it again and be able to access it, but again - only rarely.

I asked a friend to try connecting from his windows vista computer and it would not work. It would not work from my windows XP virtual computer either. However, it mounts and works just find from my work computer (also Windows XP).

So it seems to be a 50/50 chance that the drive will mount on any given computer/system and work. Do anyone know what the problem may be? I'm guessing user permissions, but I can't figure out what.

I've made sure the webdav folder is owned by www-data and www-data has read access to the password file as well.

When I try connecting from nautilus, I get this in the log file:

Code:

Here is one of the (many) sites I've tried looking at: [url]