Having trouble linking combos

Lik ryu’s low jab into medium kick or medium punch even with plinking them. I’m not sure if it’s the equipment Im using or my execution is really sloppy even though I practiced on a stick for a month.The stick I’m using is a mayflash ps2 ps3 usb universal arcade stick.The tv is vizio brand.help?

You’re talking about SF4 right?

Yes,I am.

Not sure low jab will link into medium kick. Try low jab-low medium punc-low medium kick. I know that works.