Mac <-> Mac file transfers slow, lock up Finder


macrumors 68030
Original poster
Aug 8, 2006
Northern California
I used to be able to plug in my PBG4 to my Mac Pro's second ethernet port and transfer files at fast gigabit speeds. A few weeks ago I tried this and, while it worked, the speeds were SLOW. Now today when I try it the Finder locks up and *can't* be force quit (and if I try everything else goes down with it). Eventually the transfer times out and the Finder relaunches. Update: I got it working again but it's still slow, not the speeds I should be seeing.

The only changes I can think of are that I've probably upgraded to 10.4.10 on both machine since the last time it was working properly (I'm not willing to downgrade to find out). I know the CAT5 cable is good and the ethernet ports are good. Airport is turned off on both machines so I know it's going over ethernet. I also have VMWare installed with I know adds its own "ethernet port", I wonder if that could be related?


macrumors newbie
Aug 8, 2007
Use a router

Id say use a router; and connect the Ethernet cables to the router and then try it. Your pb g4 and ur mac pro probably don't like being connected directly.


macrumors 603
Apr 29, 2005
San Francisco
Use a firewire cable and do target mode (Startup one of the Macs and hold T). Or if you do do it over a network use FTP (transmit is a good FTP program). That will be much much much faster than doing any transfers through the Finder. The Finder is slooooow.


macrumors newbie
Sep 6, 2007
Me Too

I have the same problem when I'm trying to link two Mac Pro's at work. The Manual Connection did fix it but it seems strange that it would default to a slower speed. Also I found that simaltanious restarts also fixed the problem... or at least 50/50.