Same issue here, in Win10, Unicleo doesn't like to talk to some boards (ex: L476RG, G071RB) but will work nice with others (G0B1RE). Tried everything, including erasing and reinstalling everything Keil-related, ST-related, etc, in this computer, with...

Put a breakpoint there at line 59 and check what ID you get. If it sounds anything like "normal" (i.e. not 0x0 or FF everywhere) then check the datasheet of your chip to see what the ID means. This driver is over 6 years old, and there is a high prob...

Sorry for necroposting, I have the same issue (proxy error, can not connect to internet) with 6.5.0 in both win7 and win10. Reverting back to 6.2.1 works fine. In fact, 6.5.0 seems to have few other bugs too, so if you don't need to use STM32Cxx or S...