Why is there no response from the virtual machine?

Question

virtual box

The problem is this: there is a domain, there is a static IP, DNS is registered on this IP. When starting the server on the PC, everything works. I put the ubuntu server in a virtual machine on virtualbox, assigned a static IP in it, to the virtualbox adapter too, forwarded ports to the IP of the virtual machine, made public access to all local clients for connection in the adapter parameters, everything worked, the server is accessible from the outside. But: a little later, I transferred the connection to the router not via cable, as it was, but via wifi, I did all the steps again only for the wifi adapter. And suddenly everything stopped working, even from the host IP the virtual machine does not respond, although all IPs are spelled correctly. In the virtaulka itself, there is access to the Internet, the server calmly starts up and listens, but no one can reach it. How to solve this problem?

Answer 1

Do you happen to have "Client Isolation" enabled on your router? For wifi