Related to this situation of not letting you authenticate certain new computers, I have seen that. The latest case of it was when I tried to add a new computer but it was assigned an IP address that had been used by another computer in the past.
So that I don't give inaccurate info, I just tried to add a computer that I know has the same IP address as one had in the semi-recent past. Low and behold, it wouldn't let me. When I tried to drag it to a computer list, I got the authentication box briefly and then it went back up.
So I clicked on my "All Computers" list and I found an old entry for an old computer that has the same IP address as the one I am trying to add. I am able to click on that old one that is still in the "All Computers" list and using Command I, I can change the user name and password and gain control of the new one.
The other possibility is to simply remove the old one from the "All Computers" list and then add the new one.
This might explain why you can add them under a different Admin account or a different computer altogether.
Paul Tiffany
Underwood Public School
In fact, when I just tried it on another computer that I suspected might do the same thing
On Dec 13, 2011, at 6:33 AM, Flanagan, John wrote:
> That is exactly what I have to do. Further more, on occasion, it will not
> let me authenticate certain new computers, I can add them on a different
> Admin account or a different computer altogether, but not my main ARD Mac.
> I have not found a pattern to this yet.
>
> John Flanagan
>
>
>
>
>
> On 12/12/11 4:42 PM, "John Limberg" <email@hidden> wrote:
>
>> It seems that since the 3.5.1 version came out, I have to go to the File
>> menu and select Refresh (or comman + Y) whenever someone logs out of a
>> computer in my list. Also rescanning the subnet is periodically needed as
>> well, particularly if ip-addresses change.
>> I also have had to delete clients from my All Computers list and readd
>> them
>> if they have had HW replaced or have been renamed or their ip-address is
>> listed for a different computer.
>>
>> John Limberg
>> System Administrator
>> New Prairie United School Corporation
>>
>>
>> On 12/12/11 2:04 PM, "email@hidden"
>> <email@hidden> wrote:
>>
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>>> Today's Topics:
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>>> 1. Computer status "offline" (Kurt Koefod)
>>> 2. RE: Computer status "offline" (Nee, Andrew (NIH/NIDCD) [C])
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>>> ----------------------------------------------------------------------
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>>> Message: 1
>>> Date: Mon, 12 Dec 2011 09:20:56 -0600
>>> From: Kurt Koefod <email@hidden>
>>> Subject: Computer status "offline"
>>> To: email@hidden
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>>> I have client computers that have sharing enabled and are connected to
>>> our
>>> network yet their status appears as offline on ARD. What should I be
>>> looking for?
>>
>>
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