PSN resolver are the tools that convert the PSN and PlayStation player usernames to IP address and also from IP address to username as well. It works on the same principle as the DNS where each domain is running on a specific IP address that translated by the internet browser. In PSN resolver, there’s required a central database server with all the PSN usernames access but the company don’t let the others access this private information from the database. So, it makes unable for some usernames to resolve.

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