I started getting error code 80029564 at 14% of the install process for the black ops map pack "first strike". Ever since then, everything I try to install from psn(demos,map packs,etc.) throws this same error code at 14%. I've been in contact with sony support since march 3rd. Here is a list of everything I've tried that has failed: Restored file system, erased and reinstalled game data utility for black ops, (redownloaded map packs, demos numerous times), restored ps3 system, turned off media server, bought a new hard drive,linksys e3000 router,motorola sb6120modem and linksys wet 610n gaming adapter. I have comcast cable internet with the blast connection(16mbps). I have updated ps3, router, modem and gaming adapter. I've power cycled the ps3, modem,router and gaming adapter.released and renewed my i.p. address. flushed dns. I set up a static i.p. address and port forward to the ps3. disabled sp1 firewall and setup dmz on my router. All this and no luck! Took my ps3 to my friends house down the road who also has comcast wireless internet,linksys e2000 router, comcast modem and everthing installed fine! I then bring his ps3 to my house and try to install a free demo from the psn store and get the same install error at 14% again. so I know it's not my ps3 it's something going on with my network. i've read and searched numerous web sites about this topic and tried everything suggested with no luck. If anybody has solved this problem i would love to hear from you. Thanks for your time.