The site keeps asking for my password

If the website repeatedly shows the log-in page after submitting username and password, AND you are getting "Cookies are disabled" error message; this suggests a problem with "cookies".  Your browser must be set to allow cookies for http://www.mcoscillator.com. Our sever sends a cookie to your browser to help authenticate subscribers and members.

How to Enable Cookies

To enable cookies, follow the link below for instructions on enabling cookies in your browser.  Note that you need NOT enable "3rd Party cookies".  You can block "3rd Party cookies" and www.mcoscillator.com will work just fine

wikiHow: How to Enable Cookies in Your Internet Web Browser.