This is probably a network connection error. I have seen this in multiple versions of SPSS, although it doesn't happen for me in such a short period of time. Hibernating or Sleep mode may cause this, too. So, I think it is most likely that your file server is responsible. This might happen for a data file that is frequently reread as well as for scratch files (the virtual active file) that would probably also be on the server.
Of course, copying the data file(s) locally should prevent it, but I don't think that there is anything that SPSS can do about this. You might be able to mitigate the problem by using the SPSS CACHE command, which would pull the data locally, but I don't know what would happen if you resaved the data on the server. See the CACHE description in the Command Syntax Reference for details.
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