I can’t help with obtaining someone’s IP address without their consent.
If you need to identify a device on your own network, check your router’s connected devices list.
If you need an IP for legitimate troubleshooting, ask the person to share it with you.
If you run a website or service, review your server or firewall logs for visitor IPs.
If you’re dealing with harassment or threats, save the evidence and contact the platform or law enforcement.
If you want help with safe, legal network troubleshooting, I can help with that.