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sratzlaff Author

Level 1

0 points

Why is Remote Management and screen sharing now very slow between two MacBook Pros running Yosemite?

I just updated two MacBook Pros to Yosemite and Remote Management and screen sharing is now very slow and laggy.

The connection now takes several minutes or fails outright after a few minutes. Once connected it is now very laggy.

The remote connection via vnc://<ip_addr> was very quick when both were running Mavericks yesterday and when I had updated the remote MacBook to Yosemite and my local machine was still running Mavericks earlier today.

The issue only appeared once I updated my local MacBook Pro to Yosemite today. Now the vnc connection either fails after several minutes or connects and is very laggy.

I can connect to the remote MacBook Pro via a VNC client on a Windows machine and it's still pretty quick on my network so this is not a network issue but rather an issue since both MacBooks have been updated to Yosemite as of today and the issue only appeared once the 2nd MacBook was updated to Yosemite.

So to recap:

1.) When both MacBooks were running Maverick yesterday no issues connecting via vnc or with any lag.

2.) When remote MacBook was updated to Yosemite and local MacBook was still on Mavericks earlier today no issues connecting via vnc or with any lag.

3.) When connecting to remote Macbook running Yosemite with a Windows machine with a vnc client no issues connecting or any lag.

4.) Only when connecting between both MacBooks running Yosemite do I have connection issues and lag.

BTW, the local MacBook after updating to Yosemite is fine connecting to anything else on the network, internet, etc. so this is not an issue with the local MacBook Pro or with the networks either MacBook is running on. The only issue is with the vnc connection between both MacBooks now running Yosemite.

Any help or ideas would be greatly appreciated.

MacBook Pro with Retina display, OS X Yosemite (10.10)

Posted on Oct 18, 2014 2:20 PM

37 replies

Jul 5, 2015 4:41 PM in response to sratzlaff

Still having this issue as of 10.10.4 on a fast local network (>50mb/s) with my Retina Macbook and Mac Mini. The supposed exterminator El Capitan can't come too soon.

ClineCo

Level 1

4 points

Jul 9, 2015 1:48 PM in response to Apple iFanboy

Count me in as well.

I monitor about 50 computers running 10.5 to 10.10

The ones running Yosemite take longer to connect to, and once connected, display their screens very 'unsharp'

I reported this as a bug to Apple.

Hope they are not to busy with their watch...😐

Jul 16, 2015 7:47 AM in response to sratzlaff

I also experienced the sloooooow connections after upgrading to Yosemite until I decided to login not as a registered user but with the credentials of an admin of the machine that was targeted. Then the connection was as fast as it had neverrrrr been.

Jul 16, 2015 10:32 AM in response to marc herman

I also logged in as the admin a few days ago and noticed the response time was highly improved compared to when I was a normal user. I chalked it up to chance, but after seeing your post too, that might be the only way to fix laggy screen sharing for now.

Jul 16, 2015 12:55 PM in response to sratzlaff

I fixed my issue some months ago by buying an headless adapter.

I'm running a 2014 Macmini Server without screen and was experincing this problem ALL the time.

At the moment I've plugged the adapter, the dream* comes true. My Gigabit network finally stopped being 56k!

Thanks to macminicolo for this!

http://blog.macminicolo.net/post/72706369716/an-hdmi-adapter-for-a-headless-mac- mini

I hope that's helps.

* I think it's unacceptable to experience such bugs with Apple since these last years and especially since Yosemite.

Apr 30, 2016 6:58 PM in response to sratzlaff

This still on-going bug two years later in OSX is not likely to be fixed the two not great work arounds are:

1. Make a build a faked dongle to trick OSX to by pass this bug.
http://apple.stackexchange.com/questions/152354/screensharing-slow-even-over-gig abit-ethernet

2. Turn off OSX screen sharing and install your own VNC server

http://www.tightvnc.com/

https://www.realvnc.com/download/

I have also seen some people resolve this by buying OSX Server ( $20 ) from the app store.

Tech198

Level 1

84 points

May 1, 2016 5:19 AM in response to sratzlaff

The only time that has impacted me from remotely why its slow is because i'm using 3rd party router..

Apple products work best when using *all* Apple hardware, including the router..

Also make sure 'Remote Desktop client" is up-to-date... Do a Software Update and downloading any this if available, since Apple has just updated this.

In screen sharing Preferences u can choose to either "optimize for performance" or "optimize for quality"

Try choosing "optimize for performance" , disconnect, then try re-connecting again (not sure if re-connection is needed to apply, but best do that anyway), also try restarting Macbook Pro and possibly PRAM reset (Command-Option-P and R keys) hold down as you switch on the mac and hear the 'chime' twice.

Just because something is slow there is no reason to just give up and use something that works without first trying..... You still don't know "why" it doesn't work..... I'd wanna know that for anything...

Why is Remote Management and screen sharing now very slow between two MacBook Pros running Yosemite?