Ucom 208-2 Driver -

What are you using? (Windows 10, Windows 11, macOS, Linux?)

Microsoft is gradually deprecating legacy COM port emulation via inbox drivers. Starting with Windows 11 24H2, unsigned VCP (Virtual COM Port) drivers will be blocked entirely. ucom 208-2 driver

Not always. If the chip is actually Prolific, yes. But many "Ucom 208-2" units use CH340, which requires a different driver. What are you using