I've recently treated myself to a 12" PB (just a couple of weeks ago) and I'm having some unexpected problems with networking.
I have a small home network with static IP addresses for all machines in the 192.168.0.n range. When using wires, all machines connect to a 3Com hub, which in turn is connected to a D-Link ADSDL router. There's a PC laptop, the new PB, an old (gigabit ethernet) PowerMac, and there used to be my old Lombard. In addition there's a Belkin wireless basestation, and the new PB, my old Lombard & my wife's Pismo can all connect wirelessly. Wireless connectivity is absolutely fine.
The problem arises when I've got the new PB connected by ethernet. This morning was typical. At first everything works fine - I can pick up mail, browse, etc. After a while (during which time the machine was actually not being used) I went back to it and was unable to connect. No networking tasks of any kind are successful. Doing a bit of diagnostics, I opened a terminal window and ran the command 'ipconfig getifaddr en0'. This produced this result:-
get if addr en0 failed, (os/kern) failure
which is pretty clear - the OS kernal has decided to stop running some portion of the network stack.
I can restore connectivity by a number of means - rebooting, obviously, but also just removing the cable & replacing it.
There's nothing else on the network with that IP address. The Airport Extreme port is turned off in the Location I use when I'm connected by ethernet. I'm running OS X 10.2.6. The cable & hub are fine - I've tried different cables with the same result, the old cable works fine in other machines. The hub is fine.
I'm beginning to think that there's an intermittent hardware problem with the ethernet socket on the PB. Mostly it's fine but occasionally it produces some weird transmissions which the OS can't understand so it switches it off. My dealer has been pretty unhelpful so far - said that they've never had a 12" PB returned, and maybe I should re-install the OS. I really don't want to do this. I'd like to bottom this out a bit more before I contact them again.
Anyone got any ideas or experience about this? Any further diags I can do?
Tom Burke
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