Back to my mac screen sharing no longer works since Mountain Lion release, even on Lion

I've used screen sharing via iCloud and back to my mac between a 2007 macbook and a 2010 imac. Both computers are still on Lion but screen sharing stopped working when Mountain Lion was released. I've read a number of comments on this forum that people were having trouble since upgrading to Mountain Lion, but I don't think that's the problem b/c I haven't upgraded either machine. I think the problem is something Apple did in preparation for the Mountain Lion release date and it seems to have damaged screen sharing functionality. Anybody else experiencing this or have a fix for it.
As for the specifics, I can still see my "other" machine under shared and can click "share screen," it usually searches for a couple minutes, then pops up the password dialogue box, but then searches for a while and eventually the password box closes, "screen sharing" stays open, but there are no windows associated with it.

I have the same problem, just today (although I'm still running 10.6.8). Every morning I turn on my main Logic mac then fire up my 2 slave macs, connect to them, activate Screen Sharing, and get going.
This morning I tried it, connected to the other macs as usual (I can see/access/alter their hard drives from my main mac) but when I click "Share Screen" I just get the "connecting" dialog box & it just keeps going.
The weird thing is, when I put my laptop into the network via wifi, I can screenshare my main mac's screen (all 3 of them, actually!) but not my 2 slave macs that are ethernet'd to the main mac.
I've tried every solution I could find via google, and nothing is working.
Kirby

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Screen Sharing no longer working

Hello, everyone. I have developed an issue with screen sharing on my MacBook Pro running OX 10.6.8, and I cannot seem to resolve it. Perhaps I am missing something. I realize this is a long post, but I am trying to be as complete as possible with my description of the problem and the steps I have taken to try to resolve it.
Screen sharing is of particular importance to me because I use it to control a Mac Mini that has my entire iTunes library. The Mac Mini is running OS 10.6.8.
Ordinarily, I would open Finder, click on the Mac Mini under "Devices," then "Share Screen" in the upper right corner of the Finder window. I enter my name and password in the login box, and I am controlling my Mac Mini within seconds.
Within the last few days, however, I have been unable to complete the connection. The first sign that something was wrong was when it took almost five minutes just for the login window to appear. Then, after I entered my login information, the "Connecting..." gear began spinning. It never gets any farther than that. I have even tried waiting as long as 45 minutes for the connection to complete before giving up, which requires restarting my computer, since force-quitting Screen Sharing doesn't work.
First, I tried re-booting my Mac Mini a few times, with no success. I also tried re-booting my MacBook Pro both in normal and safe mode, followed by repairing permissions and checking the volume structure (Disk Utility found no errors). I even tried running the full suite of Onyx scripts.
To isolate the issue, I took two other computers in my house, one running OS 10.7.4 and the other running OS 10.8, and they connected perfectly. All computers are on the same wireless network (although the Mac Mini connects to the same network through ethernet). Therefore, the issue has to be with my MacBook Pro.
Does anyone have any ideas as to how to resolve this issue? Thanks in advance for any assistance you can provide.

I too was running a Mac Mini with Server 10.6.8. Using it as a Netboot server was working just fine, but I wanted to look up the version of something on the mini. Connecting over screen sharing hung all day yesterday, so today I hooked up a keyboard, mouse, and display to look up the information from the mini. Turning off and restarting the shared services, restarting the mini, deleting keychains, attempting to get a screen share from a Finder connection... all hung at the "Connecting..." dialogue. I found this thread and signed out of MobileMe on the mini, and on the iMac I was using to connect. The connection went through at last, and now it's re-establishing without a hitch.

Back to My Mac / Screen Sharing

I am trying to (and have had sporadic success with) controlling my desktop computer (at home, iMac, OS X 10.10) with my laptop (via Internet, Macbook Pro, OS X 10.10.1) through connecting through Screen Sharing from the Finder window's "Shared" computers. It's really hit or miss whether the iMac shows up in the Finder window, and I can't figure out why.
I've been all over websites and forum posts for information, and have learned a lot of things, but many of them are outdated. Here are some things I've done/learned about:
I can always log into my iMac through Chrome Remote Desktop, but I want the functionality of Screen Sharing.
I cannot simply start the Screen Sharing app and type in my icloud id, because that only allows viewing and not controlling the screen.
SSH through the terminal is hit or miss; it works more often than Screen Sharing does, but still not 100% of the time. I use it to copy files, but most of the time I need to be using the GUI.
A couple times the iMac showed up in Shared computers right after I did something, i.e. trace route to icloud.com or initiate a Screen Sharing session from the iMac, via Chrome Remote Desktop. Other times I've tried to jumpstart it like that and it doesn't work.
I've tried a variety of networks (home networks, workplace, mobile tethering) and I get different results every time, on every network. I might see my iMac in the Finder at work one day, and the next day it doesn't show up now matter what I do. So it must not be blocked ports in every case.
I've been taking notes almost every time I successfully connect, and I have documented cases where I can get it to work by (once again) going into my iMac via Chrome, disabling Back to My Mac and/or Screen Sharing, then re-enabling them. But of course, this hasn't worked consistently.
Any help or insight is appreciated. Again, this is all purely done over the internet, as accessing my home computer over a local network is of no use to me; I'm physically separated from it most of the time. (Most articles and walkthroughs teach people how to do it with their 192.168.x.x addresses, and they assume that your computers are always in your Shared section in Finder. This is not the case for me.)

That means that the Remote Management is turned on.
All you have to do is turn the Remote Management off if its not in use.
You may want to investigate how the Remote Management is being used to make sure you are not turning something off that needs to be on.

Back to my Mac screen sharing not visible in Finder

I have a MacMini at home which I leave turned on for various reasons. One of them is so that I can access it from work with screen sharing. But I cannot see my MacMini from my Macbook Pro at work.
All of my computers have iCloud Back to my Mac enabled as well as screen sharing. Locally (on the same network) I can see all of my computers but but I don't see it over the internet when I am at work.
Anybody have any ideas?
All computers running OS X 10.10 or 10.10.1.

It's possible that your work network is blocking some of the ports necessary for B2MM to work.
Have you ever tried accessing the Mac mini from a different network outside of your home? If this works, then it's probably specific to your firewall/network settings at work.

Back to My Mac - Screen Sharing Mac OS X 10.10 problem

Sense Mac OS X 10.9 great feature Screen Sharing & Back to My Mac does not works any more.
Mac OS X 10.10.1
Russian interface:
We can see remote computers, but can not connect. We get a error.
English interface:
We can not even see remote macs.
If I start up main computer from Mac OS X 10.8 Screen Sharing works fine. Remote macs has Mac OS X 10.8 and 10.9

I have the same problem, just today (although I'm still running 10.6.8). Every morning I turn on my main Logic mac then fire up my 2 slave macs, connect to them, activate Screen Sharing, and get going.
This morning I tried it, connected to the other macs as usual (I can see/access/alter their hard drives from my main mac) but when I click "Share Screen" I just get the "connecting" dialog box & it just keeps going.
The weird thing is, when I put my laptop into the network via wifi, I can screenshare my main mac's screen (all 3 of them, actually!) but not my 2 slave macs that are ethernet'd to the main mac.
I've tried every solution I could find via google, and nothing is working.
Kirby

IChat - audio, video and screen sharing no longer work

I use ichat video and screen share to visit with family and assist with computer work. Every since .mac changed to .me, I am no longer able to do anything but text message...... I have changed ports, changed from .mac to .me logins. But still not luck. Nothing has changed with routers. Working with cable modems and DSL..... Looking for help.

Hi Bob,
The Screen Sharing through iChat and the Audio only and Video chats do not require the AIM servers other than to say your Buddy is On-line.
There is feedback from the AIM servers to say what capabilities your Buddies have.
You can see these if you look at their Info card (Click on a Buddy and use Apple key and i together)
Now if the Buddy does not show the capability then it may well be the AIM server.
But..... IF you have turned off (or it has become turned Off) either of the Camera Enabled or Microphone Enabled items in the Video menu (from menu bar) then you will not have the capability and will therefore not see other people.
One clue will be in the Buddies Menu about whether you can do One Way Video or Audio chats. If it says you can it is the AIM end.
9:31 PM Monday; January 7, 2008

Screen Sharing no longer works for me with Lion

I use screen sharing all the time, I have several Macs. Ever since I loaded Lion (on all systems) it opens screen sharing, asks for my username and password and loads the screen; I see the screen(s) for about a second then it prompts me again with my login to gain access. It repeats this over and over with my login.
Anybody know what can be done to correct this issue?

This is an issue I have encountered too. Mac to Mac on Lion its sporadic at best - even when you do get in, you will get a strange jerky beachball on the host computer whilst everything appears to be working fine.
Windows to Lion its seriously borked, and you can't even click on an account to log in. Its something to do with ZRLE encoding of the session, and the fact its the first multi session VNC attempt. It rejects the connection unless its 101% happy with it.
Mountain Lion makes this a bit easier...I think they glossed over this in Lion and released a new one instead.
So whilst its not a solution, more of a workaround - your best bet is to upgrade to ML. By all means try making a freshh account on the host computer that matches the client compuer, and see if that authenticates properly. It should do.
Cheaper option: turn screen sharing off, use Vine as your VNC server instead (http://www.testplant.com/products/vine/). You can even do multi session if you want to tinker with some settings and read the forums.
Please mark as solved if this helped you. Thanks!

Screen sharing no longer works.

I cannot use screen sharing between my laptop and mini, although I used to be able to do so, after I "updated" to Lion. However, I can use file sharing, showing that wireless (airport) connection is working. This seems to be an Apple network problem. I tried the solutions posted (signing out of MobileMe, restarting my laptop), but Screen Sharing comes up, the "Connecting" window shows and then goes away, while the network/(my laptop name) window stays on. Laptop also shows up in the sidebar. Trying for Screen Sharing help gets me a message: "Topic currently unavailable." Is there a solution that does not involve connecting the two computers with an Ethernet cable?

Is Firewall turned off on both machines?

OS X Screen Sharing doesn't work after Mavericks Upgrade

I have upgraded my 3x machines to Mavericks and Screen Sharing no longer works. I have tried this with and without firewalls on. File Sharing works but Screen Sharing will say connecting for a LONG time and then say that it's not enabled and to go turn it on...
help?
- MacMini - late 2009
- MacMini - mid 2011
- MBA - mid 2012
I have seen a couple people talk about this as well, but wasn't the same thing..

I believe this is the easiest way to resolve any screensharing issues in MacOSX: Solution: Reset the computer list in Screen Sharing. To acomplish that install OnyX. By the way a great tool for your Mac maintenance.
Go to Cleaning>Misc. and
check My Computers list in Screen Sharing.
Press Execute and wait until it finish.
Restart your computer.
I hope this helps.

File sharing no longer working under Lion

File Sharing no longer works on our household macs running Lion. Shared volumes show up intermittedly in the finder sidebar. But connections fail.

for what it's worth, i too am experiencing this issue and it is driving me insane... Any chance you two came across a workaround or fix?
i've discovered that clicking on "AirDrop" on the shared Mac seems to awaken the shared services (screen sharing, file sharing etc.) and make them available on networked devices.
i'm beginning to suspect that Bonjour may be the culprit as services advertised using Bonjour suddenly spring to life.
it's short-lived unfortunately as availability eventually ceases... Clicking again on AirDrop reliably brings it back...
That's where I am currently... if anybody has any ideas, I'd love to hear them.

Screen sharing doesn't work on headless mini

I have a headless Mac Mini that has been running 10.5 and 10.6 for years and I've never had any problems with screen sharing.
I now update to Lion and as soon as there's no screen attached I can no longer use Screen Sharing!
There is absolutely no way I can have a screen perminently attached to the machine.
Any ideas of how to fix this behaviour?
I've tried rebooting with no screen attached and that just hung the server at boot time.

I've found a work around.
Connect the screen and then connect to the machine via Screen Sharing
Then change Screen Sharing from Hardware display to Virtual display.
Then you can disconnect the screen and Screen Sharing continues to work. (At least so far)

Screen saver no longer working after Lion upgrade.

Hi,
After standard upgrade about 2 weeks ago (mid July 2012) the screen saver no longer works. I mean I can certainly access the application and the desktop can be made to cycle through different photos etc. But when I configure the screen saver it just refuses to go into screen saver mode at all.
I'm not seeing too much occurance of this through the postings which is a bit worrisome as I'd thought this would be a much wider issue.
Cheers,
Herbie

Please follow these instructions:
Lion: Connecting to legacy (pre-Lion) AFP services - and Mac OS X (server):
https://discussions.apple.com/thread/3258472

Internet sharing no longer works after Lion 10.7.4 update

Internet sharing no longer works after Lion 10.7.4 update. Hopefully Apple will fix this shortly. Little excuse for this kind of screw-up.

so here is da answer
1. go to finder>(computer name)>macintosh HD>library>preferences
2. copy the entire systemconfiguration folder and systemconfiguration.old folder to your desktop
3. restart mac and device which you share intenet to
then you have internet that is about 3x slower than the da 10.7.3 intenet sharing, but works
then, just wait for apple to release da 10.7.4 fixed
please use da steps!

I'm having trouble with back to my MAC. I had everything working on my home wifi network but now I am at my daughter's house and trying to connect via a verizon hotspot wifi connection. I'm wondering if the Verizon hookup is a problem.

I'm having trouble with back to my MAC. I had everything working on my home wifi network but now I am at my daughter's house and trying to connect via a verizon hotspot wifi connection. I'm wondering if the Verizon hookup is a problem.

I finally figured it out. Needed to update her Airport firmware and allow guest access, and also changed Sharing preferences to Allow Access for All Users.

IChat 4.0.7 Screen Sharing does not work.

Me and my friend both have identical machines, the intel iMac 20" 2.66mhz
Software is identical
iChat version is identical (4.0.7 (616))
Video Chat works perfectly, our internet connections are fantastic, no issues there.
Both using Netgear routers with uPnP enabled.
Internet Sharing is OFF
Firewall is "set access for specific services and applications" and iChat and iChat Agent are added.
I conclude that Screen Sharing *does NOT work* as advertised.
Apple, I am most disappointed, get it sorted for next release please.
Who else has witnessed this epic failure?
Thanks,
edit
Also, what is this iChat AV nonsense? Where are the iChat 4 forums?
Message was edited by: Wayne

Thanks again Leo for your help,
Yes I was refering to the screen sharing in system preferences/sharing.
Checked the video menu:
Screen sharing enabled
Camera enabled
microphone enabled
so no that's not it! Was hoping it was something simple like that too.
Both netgear routers dont have any ports forwarded, just upnp enabled.
The frustrating thing is, both macs are new, one is only days old, and neither mac has had it's setting messed about with or anything.
It would be great to find the solution, 100's of people having similar issues if you google it.
*edit*
Just a thought, would the type of account make a difference? At the moment we are both using the type of accounts that iChat creates when you select "get an iChat account" (creates a [email protected] login)
Message was edited by: Wayno

Back to my mac screen sharing no longer works since Mountain Lion release, even on Lion

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