Tanglefoot et al:
Yes the 'trouble' at Swanwick was indeed a network problem, due to the interface between CXSS and a COTS product. This problem was first identified in June last year and the engineers had been trying to 'fix' it but it has proved to be a vastly more complex issue than was first hoped for.
It incorrect to assert that had specialist engineers been around it would have been sorted immediately. It took some searching by the Lockheed Martin Analyst in the low level codes to find out what had gone wrong.
As there is an engineering investigation ongoing which will produce a post-mortem result soon I will not speculate on here about solutions.