This has been bugging me a lot today:
I have several computers behind a router.
One of them serves Windows shares and is connected to the router by ethernet cable.
The main client is connected to the router by Wi-Fi, and could connect to the shares just fine.
But today I added a switch to the mix, so that the server is now connected to the switch, which in turn is connected to the router.
Poof, the wireless client can no longer connect to the server's shares. It can still ping it, attach a remote desktop session, etc., but network shares are not working.
Server is Windows 7, client Mac OS 10.5.
What could be going on here?
So far I've rebooted router, server, client and even switch. No help.
Edit: Turns out other clients, and even the same MacBook Pro, can access the shares just fine if/when running Windows as opposed to Mac OS X. My Linux based smartphone connects just fine too.