we have an issue on our Cisco MX300 video conferencing systems. When one of our LifeSize ICON 600 and one of our Cisco MX300 are connected to a LifeSize Cloud Meeting and the ICON is sharing a PC Presentation it is not visible for the Cisco MX300. If another ICON or LifeSize client, Skype for Business what so ever joins the meeting the presentation is visible for those, but never for the Cisco MX300. Unfortunately firmware updates for the MX300 are not an option as we don't have any maintenance plan.
Anyone has an idea what I could try else?