C6300 admin password not working

I did what you suggested and it worked eventually. After the reset, I connected to routerlogin.net and it gave me the password reset page with the ability to set up the security questions. I set up the security questions and clicked "save". I then got an http "unknown error" and was unable to reconnect to routerlogin.net or routerlogin.com after multiple tries. I was doing this on a different PC ethernet connected to the router using Edge. I then downloaded Firefox because that worked on my other PC. I was then able to login using the admin password.