I have seen this exact problem, but I would try disabling IPv6 on your
machines, and disabling ARD's reverse DNS lookup on your ARD admin
machine. Here's the gist of it:
# On _all_ your affected Macs, turn off IPv6:
networksetup -setv6off Ethernet
networksetup -setv6off AirPort
# And on your ARD Admin machine, add turning off ARD reverse IP lookup:
defaults write com.apple.RemoteDesktop DisableReverseIPLookup -bool yes
networksetup -setv6off Ethernet
networksetup -setv6off AirPort
Hope this helps.
Andrew
---
Andrew MacKenzie
Apple Certified System Administrator
Apple Certified Pro
email@hidden
(630) 201-2499 mobile
(630) 626-3708 fax
On Jul 22, 2009, at 7:15 PM, Dan Browne wrote:
Hi All,
Over the past six months or so we've had problems with the status
of our machines not refreshing in Remote Desktop, which makes it
difficult if not impossible to send unix commands or perform other
automated tasks on one or more client machines. Using the scanner
set to either Bonjour or Local Network will refresh some, but not
all of the clients (most remain greyed out).
There are two recent changes in our LAN setup which I believe relate
to this issue. First was upgrading from our old Linksys firewall to
a SonicWall NSA 240. Second, and I believe this may be the key, was
re-numbering our network from a traditional 192.168.x.x (class-c)
address space to a 172.19.x.x (class b). Everything on the LAN is on
a single subnet with an identical 255.255.0.0 mask, though machines
are grouped according to type as if they were class C subnets (i.e. .
10 for workstations, .20 for render machines, etc).
Could my problems be the result of a bug in ARD, or is there a known
limitation as to what addressing schemes will work with it?
Reinstallation of course has not resolved the problem. I am
currently running ARD 3.2.2, both admin and client, and a mixture of
MacOS X 10.5.5 and 10.5.7 on my machines. I have heard of other
people having similar issues since upgrading to MacOS versions after
10.5.5, but Apple of course has not addressed or acknowledged any
such issues.
