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Unable to share desktop in Skype for Business?

Unable to share desktop in Skype for Business?
You can show your entire desktop or just a program to everyone in a Skype for Business Meeting, call, or instant messaging (IM) conversation. However sometime this feature does not work and give different errors. 
Error message:
·        Cannot start Desktop/Application Sharing due to network issues.
·        An error occurred during the screen presentation.
Resolution:
There are multiple thing which may affect application/desktop sharing.
1.     Make sure application / desktop sharing enabled on Skype for Business / Lync Server.
SfB /Lync Control Panel > Conferencing > Conferencing policy > select Global or create new policy and set enable ‘Enable application and desktop sharing’. Refer below image.
2.     Make sure your Skype for Business (Lync) client is updated with latest cumulative updates. Download latest update Skype (Lync) client.
3.     Update your Video and Display drivers.
a.     Go to Start > Control panel.
b.     Search for Device Manager, and then open it.
c.      Find Video drivers and update the same.
d.     Find Display drivers and update the same.
4.     If in case you are seeing blank screen after application/desktop sharing then do below:
Start > Run > Regedit > visit below registry path and delete mentioned key.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\
{00000000-0000-0000-0000-000000000000}
Note: You must Backed up your computer registry first and then removed above Key.
5.     Application sharing issue may occurs due to windows firewall blocking Lync.exe communication.
Try to stop your windows firewall service and make desktop sharing and test.
Start > Run > Services.msc > find ‘Windows Firewall’ service and right client on it say Stop. Refer below screenshot.
6.     Check Application sharing using different test to isolate issue.
a.     Is application/desktop sharing affected between internal to internal and external to external?
b.     Is application / desktop sharing affected between internal to external to internal and external to internal?
Most of the time application sharing issue is tight with firewall. Make sure that you have allowed below port:
1.     Allow Any from Internal client to Edge internal over 443/TCP.
2.     Allow Any from Internet to AV Edge external IP over 443/TCP.
3.     Application sharing using TCP port
Note: sometime application level filtering on the firewall affects application sharing (TCP) traffic destined to the Lync Edge servers. So make sure to disable application level filter on firewall if Desktop sharing issue occurs.
For Skype for Business Online refer below article:
Thank you.

Comments

  1. Wow really fantastic blog and unique content . i like it. good work. keep it up... Visit :- Skype Technical Support Also Call +1-800-231-4635 USA (Toll Free).

    ReplyDelete
  2. Well we all need to secure our business somehow either it is skype or something else. The business firewall is quite necessary for the business persons so always have it.

    ReplyDelete

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