In article < XXXX@XXXXX.COM >,
Do you know how long the DHCP lease is? Is it possible that the lease
is expiring every hour and when it does, all TCP connections are lost.
There was an issue with 10.2.?? where it would keep asking for a new
DHCP IP address and eventually us up all the possible DHCP addresses. I
think this was fixed before 10.2.8, but since it did not hit me
personally, I did not pay a lot of attention to it.
Is it possible that some other system is using the same IP address as
the 10.3.4 system, and when it starts talking, this causes enough
interference that the 10.3.4 system drops off the net and looses its
file sharing connection?
Keeping in mind that I'm making wild guesses. What if you changed the
Mac OS X 10.3.4 system to use a Fixed IP address. If this was your home
network, I would say look at your router and pick an address outside the
range of DHCP addresses being served. _HOWEVER_, since you said this is
work, I would see if the network admin can give you a Fixed IP address,
even if it is only for a few days as a debugging aid. You can use the
Mac OS X 10.3.4 Network System Preferences, DHCP with Manual address
mode so that you still get the router and DNS addresses from the DHCP
server, you just provide the fixed IP address. Or just manually enter
everything, IP, Mask, Router, and DNS addresses.
I hope my wild guesses at least shake things up enough so that you can
find out what the real problem is.