>Long story short, I have 3 computers hooked up to a wireless router:
>
>Computer A: desktop PC running XP
>Computer B: desktop PC running XP
>Computer C: MacBook Pro running OS X 10.latest
>
>Netgear Wireless Router model WGR614 v6
>Comcast Cable
>
>Network is connected cable -> router -> computers
>
>I have internet connectivity on all three computers
>
>Checking the router's attached devices from the utility homepage
>(192.168.1.1), I can see three computers are connected to the network.
>However one of the computers, Computer A, has no Device Name assigned to it,
>even though I had run Network Setup Utility on it, and it has a corresponding
>IP and MAC Address (IP verified on the computer through ipconfig).
>
>So, here's what happens:
>
>Computer C can browse Computer B. Computer B is apparently aware of Computer
>C, but I futzed something up, so I can't browse my Mac (although at one time
>I did do this).
>
>But that's not the main problem. The main problem is computer A can't
>communicate with Computer B or Computer C in either direction.
>
>What makes it weirder is that using ping, I've found that Computer A can
>ping Computer B and Computer C, but not itself!!? Computer B can see itself
>and Computer C. Computer C can see itself and Computer B.
>
>In otherwords, Computer A cannot be pinged by anyone, including itself, but
>Computers B & C can be pinged by everyone, including Computer A.
>
>Is this making any sense? Because I can't even begin to figure out where the
>problem lay.