Looking for logging into the Umbraco Timeout 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 Umbraco Timeout site. After that you can login as usual with your login credentials.
https://our.umbraco.com/forum/using/ui-questions/7537-Extending-Session-Timeout
http://www.jondjones.com/learn-umbraco-cms/umbraco-developers-guide/umbraco-core-concepts/how-to-stop-umbraco-automatically-logging-you-out
https://stackoverflow.com/questions/25592453/umbraco-session-timeout
https://stackoverflow.com/questions/25583127/session-timeout-after-some-seconds-in-umbraco/30409395
https://edgewebware.com/2014/06/automatically-log-out-members-send-login-page-umbraco/
https://manage.accuwebhosting.com/knowledgebase/2435/Fix---Session-Timeout-after-some-seconds-in-umbraco-installation.html
https://issues.umbraco.org/issue/U4-7380
https://issues.umbraco.org/issue/U4-11119
https://github.com/umbraco/Umbraco-CMS/issues/2917
https://developers.gigya.com/display/GD/Umbraco
https://www.usi.edu/media/5586619/Umbraco-7-Editors-Manual_USI.pdf
https://offroadcode.com/journal/dev-talk/tips-to-login-issues-with-umbraco-upgrades/
https://codeshare.co.uk/blog/simple-net-keep-alive-handler-to-prevent-timeout/