I'm having exactly the same problem, starting about 2-3 weeks ago, as I reported in the thread mentioned above.
I have a backup Skippa for if/when the current one dies. To try and diagnose a hardware fault I tried an alternate power supply, and also swapped over the HDD to the backup.
The problem remained, so by my reckoning that rules out the Skippa hardware.
That just leaves internet/network and failing HDD, the latter of which I suspected the most. I was even making plans on how to copy off the recordings and reformat the disk, which I REALLY didn't want to have to do.
Seeing as yours is the third such Skippa report I'm now satisfied it is an ICETv server issue so I'll stop worrying, and hope for a solution by the ICE team.