[Macpartners] G5s, sleep, falling off the network?

[mark pearrow]

Hi all,

I have recently noticed a couple cases where users of Tiger (10.4.3)  
and dual-cpu G5s have complained of a sudden inability to access  
their computers remotely by any means. The machines are able to  
access the network perfectly well as long as the user is sitting at  
the console. The failure mode seems to happen if the machine has been  
idle for a while. Looking at the network switchport that the host is  
connected to shows the arp entry for the host as <incomplete>, so it  
appears that arp isn't working, etc.

I would wonder if this is a sleep-induced problem. Note that remote  
access worked fine on both hosts until "recently". Neither host has  
had any new software installed *except* the 10.4.3 update and any  
other Apple Software updates that have come out in the past month or  
so. Both hosts are maintained by different people and are in two  
physically different locations.

Anyone else seen this?

mjp