What if I can't send a message?

If you use the company intranet, you can contact the company network management to check whether to set the nail network white list, nail the configuration description of the network agent, and check whether the nail version is the latest. If it is not an upgradeable version or uninstalled and reloaded, if the above steps still fail, it is recommended to submit a screenshot and let our technicians investigate and deal with it.

Not receiving the video conference may be the nail account of the teacher who initiated the video conference. It has nothing to do with your account, such as friendship, group relationship, organizational relationship, and has been banned. If the mobile phone is nailed, it may be that the notice of nailing has not been opened.