Video sharing is disabled by the administrator in Teams
The issue does not occur at random but by design due to the meeting policy settings. Also, it has been observed the problem could be fixed by setting the ‘Allow IP Video’ setting to ‘On’ position for the Guest Access. To enable video sharing in the Teams Meeting: Before proceeding with this method, make sure guest access is configured in the Teams admin center. For this, sign in to the Microsoft Teams admin center, select Org-wide settings > Guest access. Set Allow guest access in Microsoft Teams to On. Then, proceed as follows – Go to Microsoft Teams admin center. Click ‘Meetings’ drop-down arrow to expand the menu.
Select ‘Meeting policies’.
When directed to a new page, choose a meeting policy name. Scroll down to its ‘Audio & Video’ section. Here’ look for the ‘Allow IP video’ setting. Audio and video settings let you turn on or off features that are used during Teams’ meetings.
When seen, move the slider to ‘On’ position to enable the setting. This will allow guests to use video in their calls and meetings. Hereafter, you should not see ‘Video Sharing is disabled by the administrator’ message in Microsoft Teams That’s all there is to it!