The Industrial Raspberry Pi Forum

I tried to log in to the RevPi using the username and password on the side of the RevPi, but the PuTTY terminal print "Access denied".

Hello Kaduk, How do you log in? Via SSH terminal or with USB keyboard and HDMI screen? Your keyboard layout depends on this and via USB log-in it is English (QWERTY). Does your password contain the characters 1, I or L? Unfortunately, they are almost identical to the font used so far. In case just try to switch them if you have them in the password on the label. If this does not work, restore the factory settings using the steps in this checklist - afterward you can log in to the device.

Revolution Pi Checklist

EDIT: If you are using the Public Beta Image "RevPi Bookworm OS" the login username is always "pi".
But if you are using another version, i.e. "RevPi Bullseye OS" there are two different usernames a) admin for the WebStatus Login and b) pi for the Shell or Secure Shell (SSH) login.