Always disable your Wi-Fi or use a Firewall to block VCDS from "calling home" to Ross-Tech servers.
The "V2" clones are generally robust. If it stopped working, 90% of the time it is a corrupted firmware partition caused by an accidental update. An ST-Link V2 programmer is the essential tool for this repair. If you are not comfortable with soldering and hex editing, purchasing a replacement interface is usually more cost-effective than the time spent repairing a $20 clone. vcds 2231 hex v2 clone repair new
Ensure your computer's USB port is functional and not in "S mode," which prevents non-Microsoft Store installations. Always disable your Wi-Fi or use a Firewall