So, if you want to resolve “You have been kicked due to unexpected client behavior” then use go through this article as all the possible solutions are mentioned here.

Displayed when a client attempts to join a server that is in the process of closing, or when a player attempts to rejoin a server before Roblox disconnects them from their previous visit (ID 17/ ...

If it’s a technical issue, the steps below should help you understand and remedy the problem. Try joining another experience. ... the Roblox client, or something else in your environment.