I'm having trouble getting one Mac on my home LAN to talk to another - let's call them Red and Blue. Red can't connect via Finder (under Shared) to Blue. But Red can open a Screen Sharing session to Blue. Blue can open a Screen Sharing session to Red, and connect to Red via Finder. Both Red and Blue are using WiFi, connected to the same router. Both are running OSX Leopard, 10.5.8.
I have a third Mac I'll call Orange. Orange can connect via Screen Share or Finder to both Red and Blue.
What could be causing Red to have these issues connecting to Blue?
Red.local
,Blue.local
, etc.).