Please describe the problem:
I have run into this issue a few times on my laptop. I have both wireless and wired connections available, and have on occasion switched from the wireless to the wired by simply plugging in the wired network. Ubuntu seems to handle this mostly okay, except that any mounted ssh drives are no longer accessible. 

I can open a new connection (and get a duplicate icon on the desktop) by manually opening the location again, using alt+f2 and entering the address, e.g., ssh://servername . I haven't been able to try this against other types due to an issue with SMB.

I am not sure if this is a nautilus problem or not however... if it isn't can someone recommend which project would be a more suitable place to report this? I'm using Ubuntu Hardy with all the standard nautilus versions (1.2.22.3-0ubuntu2 i think)

Steps to reproduce:
1. Connect to a network with access to the computer "servername"
2. Mount an ssh drive by opening nautilus, and entering ssh://servername in the location
3. Change the network to another one that still has access to "servername" (in my case, I go from wireless to wired on the same router)
4. Attempt to open the mounted drive that is displayed on the desktop or in the bookmarks bar (if the user previously added it)


Actual results:
Clicking on link on the desktop or in the Bookmarks bar bring up a dialog saying: "Please wait while opening ...."

Eventually, this times out with the following error:

Error unmounting mount: DBus error org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired or the network connection was broken.

Expected results:
It would be good to have the network connection automatically refresh itself and reconnect

Does this happen every time?
Yes

Other information:
This can be worked around by opening a terminal and telling gvfs to unmount the filesystem.  In this case, the command is: gvfs-mount -u sftp://servername/