Wiki log in issues

When I try to use my existing user name and password to log in on the Ross-Tech Wiki page, I get a wrong username and password message.
Do I need a separate registration/login?

One does not need to login to use the Wiki. One just views the pages. Only those who are permitted to add content need a login and those are restricted. If you have content to add to the Wiki, please email Support@Ross-Tech.com to discuss.

Thanks.