Looking for logging into the Requested Url Aspx site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Requested Url Aspx site. After that you can login as usual with your login credentials.
https://stackoverflow.com/questions/5958896/automatically-redirect-to-login-aspx-on-submit
http://www.dnnsoftware.com/forums/threadid/354951/scope/posts/requested-url-loginaspx-cannot-be-found
https://github.com/IdentityServer/IdentityServer2/issues/224
https://world.episerver.com/forum/legacy-forums/Episerver-7-CMS/Thread-Container/2013/11/The-resource-cannot-be-found---Requested-URL-Utilloginaspx/
https://forums.asp.net/t/1989045.aspx?Why+is+my+Intranet+MVC+App+looking+for+Login+aspx+and+not+Login+cshtml+or+Login+cs+
https://social.technet.microsoft.com/Forums/lync/en-US/eca1f3e0-784b-4713-9fd7-8e608768a0a8/exchange-2013-ecp-login-fails-http-404-requested-url-owaauthlogonaspx?forum=exchangesvradmin
https://docs.microsoft.com/en-us/dotnet/api/system.web.security.formsauthentication.redirectfromloginpage
https://msdn.microsoft.com/en-us/library/xdt4thhy.aspx
https://www.codeproject.com/Articles/292149/The-resource-cannot-be-found-Account-Login
https://haacked.com/archive/2011/10/04/prevent-forms-authentication-login-page-redirect-when-you-donrsquot-want.aspx/
https://forums.iis.net/t/1160687.aspx?Server+Error+in+Application+The+resource+cannot+be+found+
https://www.youtube.com/watch?v=GY8PkikQ8ZE
https://www.c-sharpcorner.com/article/redirect-to-clicked-page-after-login/