Linksys WMP54G v4.0 + Mandriva 2006 & Win2003 - unusual behaviour of wireless

Hello,

There are 2 computers with this card.
Both of them have mentioned OSes.
I noticed that one of them blinks the green
diode in card panel as soon as card is up (whenewer there is a signal or
not, so I guess it is a correct behavior of this card).

In the other computer card stopped blinking diode and it has problems
with getting network connection (it used to work fine).

Should I remove card and install it again, or is it a permanent
hardware failure ?

robert