New install. Trying to log in to admin to check for hotfixes and updates but am told login and password are wrong. Uninstalled and attempted again (twice). Same results. Probably missing something simple but it is escaping me at the moment.
And to be clear, if this is indeed Internet Explorer, the simplest thing may be the last one that Anit mentioned in that post he points to: add your site to IE’s “trusted sites”.
Let us know if either that or the other proposed fix there may help you.