Android x86 on VirtualBox - Apps cannot access internet
I know it's an old thread but in case I was facing same issue well the solution is to change network adapter settings (virtual box or vmware) from NAT type to Bridge type that's it! and for the mouse issue you need to disable Mouse integration, if you don't want to change the network type there is another solution if your android vm is rooted which's rooted I guess you can install xposed framework and install fake wifi connection module worked on android 4.4 upto 5.1 if you have another version such as marshmellow (6.0+) then you need to install an apk from here https://www.mediafire.com/download/cbsu84p9496n70o , and after installing it you will be advised to install hack module from xposed so it can make the apk work well.