Hi,
The University of Manchester has informed us that the network serving the SpiNNaker machine is at risk between 7pm and 11pm on Wednesday 2nd February and Thursday 3rd February. The Jupyter and batch access may become unavailable during these hours, and errors may occur in any jobs that are running on the machine at this time if they need to communicate with the host at any point.
We apologise for any inconvenience this may cause.
Andrew