I do not know a RAINBOW user ID and password. Please check the Rainbow IT Support Site > Get Help > Frequently Asked Questions > ID/Password > I don't know the password for the RAINBOW user ID or I don’t' know the RAINBOW user ID. Related articles Can I use wireless LAN (Wi-Fi) in the university? Can I borrow a PC? Is there any place where I can use a PC? Can I install Microsoft Office software ? Where can I find the contact information of instructors?