Hi Niclas,
please check the event log on your client.
There should be found an event, which gives a few more details, why backup stopped.
You should also issue a bug report via Microsoft Connect as outlined in the sticky thread in the top of this forum.
This may help to resolve such stuff in the future.
I had also some situations in the past on a WHS, which is also my Beta test system, which had to be fixd by various means:
- reset of backup database (with WHS Toolkit, drawback: You loose all client backups, if you didn't save them before)
- chkdsk /f /r on a client disk, which always caused cancellations
- changing the network card of a client (seems it was somewhat bugged and so overloaded the system ressources during the backup after transfering a certain amount of data)
- reinstall a client on a new disk (the old disk had some bad sectors, causing VSS to fail on a volume)
Best greetings from Germany
Olaf