Stephen Foster sent a message to Andrew House that said:
Dear sir,
I am contacting you in reference to a problem we have been experiencing accessing the PSN. We manage large fiber sites at university housing. do to NAT we might have 80 or more Play station gaming systems on a single IP address. Our IP addresses keep getting black list by Prolexic. Prolexix has refused to help resolve the issue. We are at the point of adding a disclaimer to the residents that states do to Sonys security we are unable to provide access to Sony PSN. Anything you could do to point us in the right direction to have this issue resolved would be a great help.