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Screen sharing in Lync2013/SkypeForBusiness2015 keeps losing focus with Windows 10.

Posted on 2016-07-15
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Last Modified: 2016-08-16
I've been using our Lync2013/SfB2015 server/clients to provide screen sharing remote support to end users for a few years now and it's an invaluable tool for me.  Lately, I've been rolling out Windows 10 to people, and I've found that screen sharing doesn't work nearly as well as before.  The main problem is that I'll ask for control, start doing what I need to do, and then the mouse will just stop responding to me.  It typically happens when I try to install/uninstall a program, or access task manager, etc.  I imagine it has something to do with elevated permissions perhaps.

Is there any sort of setting I can enforce through Group Policy so my screen sharing works flawlessly?  FYI, All users are local admins on their own machines.

If Lync/SfB isn't going to be able to accomplish this, can someone recommend an alternate software package (paid is fine) that would do what I need?  I'd want to be able to centrally deploy/manage it, etc...

Thanks!

Josh
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Question by:ealmquist
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Expert Comment

by:McKnife
ID: 41712915
No config changes possible.
I'd try and upgrade the network drivers and install all updates for win10/Lync/Skype
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Author Comment

by:ealmquist
ID: 41717569
I have the latest SfB server software installed with all of the updates.  Is there really nothing else that can be done?
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Expert Comment

by:McKnife
ID: 41717619
So you tried to upgrade windows (possibly you are not on 1511 but on 10240?)
And you also already tried to upgrade the network drivers?
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Author Comment

by:ealmquist
ID: 41717807
I'm on 1511 with the latest updates.  The SfB 2015 server is a Windows Server 2012 VM on an ESXi 5.5u2 host.  It does have the latest VMWare tool installed.
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Expert Comment

by:McKnife
ID: 41717881
What is the network card and its driver version, if I may ask?
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Author Comment

by:ealmquist
ID: 41717903
On the SfB server?  It's using the vmxnet3 Ethernet adapter driver version 1.6.6.0.
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Expert Comment

by:McKnife
ID: 41717930
No, I meant on win10.
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Author Comment

by:ealmquist
ID: 41723616
Sorry for the delayed response...

My driver is Realtek PCIe GBE Family Controller version 8.13.314.2013.

UPDATE:  I just found version 10.3.723.2015 and installed it.  I'll let you know if that makes any difference.  I'm a tad skeptical that this issue could be related to a driver and not SfB itself, but I'm willing to try anything.
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Author Comment

by:ealmquist
ID: 41735211
Again, sorry for the delay.  I just upgraded my entire pc and have all the latest drivers.  Using a Killer E2400 network adapter.

Same issue keeps happening.  I was shared with something and launched their system restore and then lost control.  I had to have them walk through it for me...  It has to be a permission or elevation issue right?
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Expert Comment

by:McKnife
ID: 41735226
Ok, let's look at your suspicion of UAC. You wrote "It typically happens when I try to install/uninstall a program, or access task manager, etc." - is typically "always", or can't you reproduce it 100%?
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Author Comment

by:ealmquist
ID: 41737528
At this point, I'd say always, yes...

For the client machines, I always set UAC to the Never Notify setting as well.

I also have the following GPO configured for computer accounts:

Computer Configuration (Enabled)
Policies
Windows Settings
Security Settings
Local Policies/Security Options
User Account Control
Policy Setting
User Account Control: Admin Approval Mode for the Built-in Administrator account Enabled
User Account Control: Run all administrators in Admin Approval Mode Enabled

All users are local admins on their own machines, so I used the above to fix the issue with the "You can't launch this as the administrator" issue in Win10 machines.
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Expert Comment

by:McKnife
ID: 41737554
So you already set it to "never notify"? Well, then I don't see how it could possibly interfere, sorry.
No idea. I would contact Microsoft support now.
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Expert Comment

by:McKnife
ID: 41749348
You could have left the question open, so we could read about the solution. I'd be interested.
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Author Comment

by:ealmquist
ID: 41749353
It's still ongoing, but MS agrees it is an elevation issue.  They had me try some GPO settings which fix the screen sharing problem, but then introduces an issue where you can't launch any built-in apps without getting the "You can't launch this app as administrator" error.  As mentioned, all users are local admins on their own machines.

I'm happy to leave this question open and give a blurb once completed.
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Accepted Solution

by:
ealmquist earned 0 total points
ID: 41753042
Microsoft was able to fix it!  Had to tweak my GPO with these settings:

Computer Configuration (Enabled)hide
Policieshide
Windows Settingshide
Security Settingshide
Local Policies/Security Optionshide
User Account Controlhide
Policy Setting
User Account Control: Behavior of the elevation prompt for administrators in Admin Approval Mode Elevate without prompting
User Account Control: Detect application installations and prompt for elevation Disabled
User Account Control: Run all administrators in Admin Approval Mode Enabled
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Expert Comment

by:McKnife
ID: 41753059
Ok. If you like this fix might be the next question. They should rather fix lync. But fine, you have a fix.
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Author Comment

by:ealmquist
ID: 41753064
Correct, that's a whole other issue...  For now, I'm ok with this fix as it lets me do what I need...
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Author Closing Comment

by:ealmquist
ID: 41757577
Microsoft solution.
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