I'm having this issue - it seemed to start with version 13.0 I think (although it could have been earlier).
The issues I have is related to my SSH shares over the internet however. Used to work fine but since the update I have to wait about 2 minutes after opening XBMC to be able to access my shares...
Here's what happens:
1- Windows 8.1 or OPENELEC turns on (issue happens on both machines at different geographical locations).
2- XBMC opens
3- Try to access a movie in the database.
4- Long pause of 15 seconds then message says 'file not available anymore...'
5- I check the source and it says the 'network location isn't available.'
6- Try a few more times...same error messages
7- After a while (about 2-3 minutes passes) it then magically works fine!
I'm not sure what to do but I'm going to start trying different builds - a nightly build of 14.0 didn't fix the issue so will try 12.0 and let you know which one works for me. If anyone has any idea's would appreciate hearing them
Issue happens on Linux and Windows systems.
Charlie