a media error has occured 80710723

[anm72]

Hi i hope someone can help i used to get this message on my ps3 a lot when using ps3 media server i then tweaked some settings on my router and the problem disappeared i have just had to reset my router and the problem has reappeared and is a real pain in the arse. i cant for the life of me remember what i did to fix the issue i was hoping someone could help i know it is something in the router settings i use a virgin media superhub 2 and connect to the ps3 with a powerline any help would be greatly received