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Keyspan Drivers and Parallels Networking Issues

APPLIES TO:
  • Parallels Desktop 3 for Mac
  • Parallels Desktop 2.x for Mac

Symptoms

Installing KeyspanUS4A.pkg in Mac OS disables Parallels network drivers. Host-Only Networking and Shared Networking modes are grayed-out in the VM configuration. In Mac OS System Preferences, the Network pane also informs you that the drivers function not properly.

Cause

Keyspan driver conflicts with Parallels network drivers.

Resolution

Change the driver loading order to load "Pvsvnic.kext" first and "KeyspanNHCI-T.kext" last.


Unfortunately it is not quite easy to do this. You can try moving "/System/Library/Extensions/KeyspanNHCI-t.kext" to "/Library/StartupItems/NHCI/" and kextload Keyspan kext from /Library/StartupItems/Parallels/Parallels after Pvsvnic.kext. (open Applications > Utilities > Terminal and execute "sudo kextload <kext file path>".)


You can also can try to find the solution on our web forum:


http://forums.parallels.com/showthread.php?t=11296&highlight=keyspan 




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