I've got a problem with my 15" retina MacBook Pro when connecting to NFS shares exported from a Solaris 11.1 server. The problem I'm seeing is that connecting to the shares takes a long time, browsing the directory structure takes forever and the network shares disconnect intermittently. File transfers never complete and the Finder frequently hangs with the annoying beach ball that I haven't been plagued with since the time pre-SSD! I'm running OS X 10.8 with the latest updates from Apple and I've tried re-installing OS X 10.8 from scratch twice, erasing the disk beforehand and the problem still persists. I haven't installed any extra software apart from the base OS. I've also tried disabling the wireless card and using my Thunderbolt Display ethernet connection and the same problem still occurs. My wife has a 13" retina MacBook Pro, and I also have a Mac Mini, neither of which suffer the same problem. Connecting to NFS shares on either is lightning quick, and I'm able to browse the directory structures quickly and transfer files without any problems. If there was a problem with my Solaris server then I'd expect the same problem to happen on other clients, which is not happening. All the machines are set to acquire IP addresses via DHCP, and I have a local DNS server running. As far as I can tell, there are no differences in the network configurations on any of the machines. Does anyone have any ideas what might be causing this problem? I'm starting to pull my hair out on this one!