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  1. #1

    Member Since
    Nov 23, 2010
    iMac 27" Core i7 / MacBook Air 11.6"
    Networking: screen sharing problems

    I have a strange problem when I try to connect to another Mac in my home network via screen sharing. Here's what happens in case somebody can help me.

    I'm trying to do this via Finder. I go to 'Shared' on the left column of finder and place my cursor on the name of the other computer in the network and I click on the 'Share Screen' button. When I do that, a little screen pops up saying "contacting 'other computer'"

    And after a while, the following error message appears:

    "Connection failed to 'other computer'"
    Please make sure that Screen Sharing (in the Sharing section of System Preferences) is enabled on the computer to which you are attempting to connect. Also make sure your network connection is working properly."

    However, Screen Sharing IS enabled in System Preferences (on both computers). I disabled the firewalls on both computers as well in case that was the cause of the problem.

    I have been wracking my brain trying to troubleshoot this and I've found some strange things that might be connected to the problem.

    I think I must have messed up something changing the name of the other computer. This is a computer that I have in another room of the house (from now on 'Computer 2', 'Computer 1' being my computer, the one I'm trying to connect from). In this computer I have various accounts for my children, for myself and for guests. The thing is that before the computer used to have another name (I don't remember the exact name) and then I changed it to Marta. (Note: the time also coincided with the upgrade of OS X to 10.6.5)

    Since I did that, when I look at the public folders in Computer 2, things are a bit amiss.

    The first thing I notice is that now the public folder looks different from the other folders:

    ImageShack: Host and Share your Photos and Videos - computer1mountfinder.png

    View of the folder on the desktop:

    ImageShack: Host and Share your Photos and Videos - computer1mountdesktop.png

    i.e it doesn't have the three little guys that mounted folders usually have.

    The second thing I notice is that now I can drag files to that public folder but I can only see the files that I have put in there at the moment. If I turn off the computer and turn it on again, I cannot see those files any more. Nevertheless, the files are there. I can see them when I go physically to computer 2 and I look at the contents of the public folder.

    Furthermore, I noticed that if I click on 'connect as' and I introduce the login name and password for my daughter's account, then I get to see another folder called 'mfm' (her user's name) which I don't see before doing 'connect as':

    ImageShack: Host and Share your Photos and Videos - mfm.png

    Now, what you have to understand is that 'mfm' and 'Marta' are the same. That is, 'Marta' is my daughter and the name that I gave the computer. 'Marta's public folder' and 'mfm' are in fact also the SAME folder. If I do 'connect as' and enter mfm plus password, I can see all the files that I dragged to 'Marta's public' folder.

    So my hypothesis (for lack of a more reasonable one) is that I must have done something (probably when I changed the name of the computer to Marta) that has screwed up the network settings and now the computer is not recognized when I try to do 'Screen sharing'.

    If I try to do screen sharing from Computer 2 to Computer 1, things work smoothly. I get a pop up window with two options:

    . Enter your name and password to share the screen of Josep M. Fontana's iMac (my computer)

    - by asking for permission
    - as a registered user

    Then I give my user name and password and I can do screen sharing with no problems.

    As I said, when I try to do this from computer 1 to computer 2, I am not offered any options: a little screen pops up saying 'contacting "Marta"' and it stays there until I get the error message.

    I've wasted a lot of time trying to figure out what the problem is. I would REALLY appreciate any help anyone can give me to solve this problem.

    Thanks in advance.

    Josep M.

  2. #2

    Slydude's Avatar
    Member Since
    Nov 15, 2009
    North Louisiana, USA
    2.8 GHz 2008 MacBook Pro 10.11, 8 GB mem, iPhone 8+, 2015 iMac 16 GB 10.13 beta
    Are both computers Intel Macs? I used to get some of that behavior when I tried to connect from my MacBook Pro to my G5.
    Did you know these forums are soon to be shut down?
    Long story here. Short storyhere

  3. #3

    Member Since
    Nov 23, 2010
    iMac 27" Core i7 / MacBook Air 11.6"
    Yes. Both are last generation iMacs. One is a 27" and the other is a 21".


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