Looking for logging into the Magento Admin Connection Error 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 Magento Admin Connection Error site. After that you can login as usual with your login credentials.
https://magento.stackexchange.com/questions/26071/magento-1-9-can-t-login-to-admin-panel
https://stackoverflow.com/questions/2176195/cant-log-in-to-magento-admin
https://community.magento.com/t5/Installing-Magento-1-x/Invalid-login-credentials-when-connect-from-Magento-Admin-to-the/td-p/26866
https://www.sitepoint.com/fix-magento-login-issues-cookies-sessions/
https://www.youtube.com/watch%3Fv%3Dlb70XMmySI8
https://www.mavenecommerce.com/blog/magento-issues/
http://www.google.de/url?url=http://www.codescafe.com/how-to-fix-magento-admin-login-page-refresh-without-error/
https://magento2.atlassian.net/wiki/display/m1wiki/Cannot%2Blog%2Bin%2Bto%2Bthe%2BMagento%2B1.x%2BAdmin%2BPanel%2Bon%2BLocal%2BInstallation
https://www.aspirationhosting.com/backend-localhost-magento-admin/
https://magenticians.com/magento-ssl-configuration-issues-resolved/
https://github.com/facebookincubator/facebook-for-magento/issues/11
https://www.yireo.com/tutorials/magento/magento-administration/651-unable-to-login-into-the-magento-backend
https://bobcares.com/blog/magento-connect-invalid-login-credentials/