I dont know if this helps but its quite easy to give the computers their own IP addresses which will allow a faster connection to the router or switch rather than windows allocating an address on start up. It also helps with fault finding because it takes windows out of the loop.
If your machines are kept in the house and you dont go mobile with any of them assign the IP addresses yourself. You can still do it if your moblie with a laptop but if you want to pick up a network somewhere else then undo the following
so. If your router address is 192.168.1.1 (the address you log in to the router with )
right click your network connection, not the 1394 connection (wired or wireless) and go to properties. Hightlight TCP/IP and go properties again
check the box "use following IP address"
In IP address type 192.168.1.220
in submet 255.255.255.0
default gateway 192.168.1.1 (or whatever you use to log into the router)
check the "use the following DNS server"
in preferred type 192.168.1.1 (or whatever you use to log into the router)
alternate. leave blank
click apply
for every other computer on your network do the same thing changing the IP address so
machine 1 192.168.1.220
machine 2 192.168.1.219
machine 3 192.168.1.218
reducing the last digit by one each time.
I must be bored to post that lot but it may help with the odd connection problem. I hope im not doing an egg sucking job
