i have a pc connected to internet via wireless usb adapter, and then i used internet share to PS3. it connected and worked for like 20 minutes, and then it stopped. i tried to set it up again on my pc, but it then said it cannot do the internet share due to same IP something blah blah.

so is it technically possible to set adhoc part by doing what i did, or is it necessary to connect PS3 directly to router by wire?

also i said it worked for 20 minutes. it did, and i was browsing those lobbies and got confused how to create or join parties. any guide on how to go through those?