Multi-tap problem

This is for a friend actually, ive been reading a little bit around and havent really seen anything

My friends PS2, old not sure what version probably 1 or 2, She bought a multi-tap for it and it detects it but thats it.

Example:

starting everquest with no controller in it, it says to plug a controller into port 1, then you plug in the multitap into port 1 and then the screen changes to insert controller into spot 1A. once you plug a controller into that it dosent change.

It works perfectly on any other ps2 ive tried with same controller and mem card setup.

im mostly an xbox modder myself so i know little to nothing how the controller ports or multi tap are actually connected or detected so some help would be awesome.

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Do you have any problems without the multitap? You could have insufficient voltage due to a bad component or wire.

nope everything works normal without the multitap

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