I have a pretty unique setup and situation with our Time Capsule causing us some major problems:
We are an after school music program for teens with 7 iMacs that members use to create and edit music in GarageBand. Their files are stored on a partition of a Time Capsule that they're all given a folder on to store GarageBand projects in. Believe it or not, for the past 4 years this has worked perfectly. They've been able to open GarageBand projects from the Time Capsule's drive partition and edit, record and mix Garage Band projects in real time all while streaming over wifi.
About 3 or 4 months ago in March 2013 (I'm thinking there was a Time Capsule firmware and/or Airport Utility update around the time it started) about 5 minutes after anyone opens their GarageBand projects from the Time Capsule partition, their iMac disconnects from the Time Capsule's partition and Garage Band basically goes haywire. It sort of moves their project to "no man's land", it's not on the computer's local hard drive and it can't see it on Time Capsule, so when you try to record it says "drive partition full" and even worse, if you try to save Garage Band usually crashes and loses their work. Even if you try to do "Save As" and move it to a local location it'll still crash and lose their work.
Dragging their file from the Time Capsule partition to the computers desktop and working on the project locally for the day works, but isn't really a good solution as kids have trouble grasping file management and lose their files between computers when they work this way.
Our Time Capsule is about a year and a half old, Firmware version 7.6.3 and Airport Utility on the Mac I use to admin things is 6.3.
A weird problem I know, but we are desparate for help!