I've had two XP boxes networked by cable to a Linksys WRT54G Router. Last week I put a wireless Airlink card in an old W98SE laptop. Until today, the three PCs "saw" each other and all was well. Today, the two XP boxes see the laptop but the laptop doesn't see either XP box. The laptop does get Internet access. No firewall settings or other changes whatsoever have been made to the XP boxes. The only thing I did with the laptop yesterday was adjust the RWIN setting.
Any thoughts as to why the laptop can't see the other two machines even though they see it?