Is firmware most recent?

Do you try to establish the connection with skype on different devices? 

If positive, may contact tplink support.

Hi, thankyou,

Last firmware intalled....

I tried different device and it works, so is a problem in TP setup.

I contacted the support but they do not answer back...

:(

Still have the issue

I have a smimilar issue with Skype for Business using the MR6400 v3 and the latest firmware..  I can connect to work meetings and can hear and participate in the Skype meeting, but when somonee presents and shares there screen, I can't see it.

The error message that I get is "We could not connect to the presentation because of network issues.  Please try agian later."

I did think it could be the data provider blocking certain ports, but now I think it's the router.  Tethering from a phone on another network works perfectly.

I've been through all the router settings and just enabled the only one that I think that might solve it.  It's on the Advanced tab, under Network, and LAN Settings,

and enabling IGMP snooping.

I'll have to wait until my next Skype meeting to test this.

 

Just an update, enaling IGMP snooping solved the problem for me.  This setting should be enabled by default if it isn't already.  I might have inadvertently disabled it.

Further to this, enabling IGMP snooping worked with v3 of the router, but no longer works with v4, so I'm back to square one.  Port forwarding (adding a virtual server) can't be implemented work as a range of ports is required for desktop sharing.

https://kb.circuitid.com/knowledge-base/skype-for-business-firewall-ports/

I've tested the firewall on ShieldsUp - grc.com and all ports come back as steatth mode which is good.  I've raised a support ticket.

@zmk Hi, I'm having a similar problem with Skype for Business with the mr600. Everything seems to work OK appart from screen share. Did you get a fix to the issue from support?

Many thanks

TP-link from China connected to my machine.  They got me to run WireShark.  If I used a different network provider (O2) it worked so they pointed the finger to my network provider (Vodafone), but I think it was more complex than that, and short of getting a v3 router, I couldn't prove anything.  The problem went away when the company I work for switched from using a VPN to using Zscalar.  I now have a MR600 too and am running the beta firmware with band selection.  It doesn't work on that unless I connect with a company laptop running Zscalar.  Before that I tethered from my phone for work Skype meetings.