Make sure that you’re using the same payload when generating the backdoor and when using multi handler, if you’re already doing that then try using a different port, if you’re still having issues then please show me the following please:
1. Result of ifconfig in Kali.
3. The result of ipconfig in Windows.
3. The result of options before generating the backdoor.
4. The result of show options before running the multi handler.
5. Your download and execute file
Let me know.