How to reset password to access printer

I am trying to access my printer that I set up about a year ago but was having troubles with this service so I gave up on it at the time. I’m giving it a go again now but I can’t remember what my password was and I can’t seem to find it written down anywhere. Could you please tell me how to reset the password so I can access my printer again?

Thanks

Have you tried your astroprint account password? If so, you’re likely having problems with certificates. Is it a raspberry Pi or pcDuino?