a little help please

[daniel t]

ok i just brought a network adaptor for my ps2,
got throught the registration fine,then tryed to play online with an original not a backup.
but keep getting a 401 error,so i rang sony and they said my ps2 needs fixing,silly me didnt think the chip might be the problem,but i guess thats the problem.
ok i brought the sony chipped in australia about 6-9 months ago so im not sure what chip it has got i think it was something like a daul majic or blue something,not much help sorry
what do i need to do, use a ps2 thats not chipped or is there another way.
if someone could point me in the right direction that would be great
cheers.