Running into Page Not found error when getting user tokens

I am getting a "page cannot be displayed error" when I send (redirect) the user to the authentication page on production.  What is wrong?

Summary

The SignIn URL must begin with https://signin.ebay.com/ws/eBayISAPI.dll?SignIn

Here is an example of the SignIn url where you would replace the runame and SessionID with your values:

https://signin.ebay.com/ws/eBayISAPI.dll?SignIn­­­&runame=<runame>&SessID=<SessionID>

Also, if you have a desktop application or wish to use the eBay Accept and Reject pages, please ensure that you set the following:

AcceptURL:  
https://signin.ebay.com/ws/eBayISAPI.dll?ThirdPartyAuthSucessFailure&isAuthSuccessful=true

Reject URL:
https://signin.ebay.com/ws/eBayISAPI.dll?ThirdPartyAuthSucessFailure

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