"arplookup failed" after 10.1.5 update


Now that I have updated to OS 10.1.5, everytime my machine wakes up from sleep, the network no longer functions and applications will not open (they just bounce for a while in the Dock...and then die quietly). Inevitably, the machine must be rebooted and it hangs at a blue screen on shutdown.

So, I look in system.log and see the following repeated several times:

Jun 9 22:14:34 localhost mach_kernel: arplookup failed: host is not on local network
Jun 9 22:14:34 localhost mach_kernel: arpresolve: can't allocate llinfo for

...followed by a bunch of NetInfo and DNSAgent errors. is my router.

I seem to be able to avoid it by quitting Mail.app before I put the machine to sleep, but that's a bit annoying :rolleyes:

Anybody else seen this behavior? Arplookup errors after the 10.1.5 update???

Thanks for any feedback...


It sounds as if your ethernet card lost its mind; if this happens again, the most interesting thing to see would be the output of
ifconfig -a
to see if the configuration is still correct.


The OS X 10.2 Jaguar update finally resolved this problem with Mail!