Quote from: taiyo1578 at Sep 02, 2015, 07:27 PMusing a Cloud server environment on Bluehost
That's potentially a clue. Bluehost's cloud accounts use Varnish caching, which
may be interfering with your manager use.
A potentially easy way to test to see if that's your problem is to temporarily turn off Varnish caching and see if the manager login works. Here's Bluehost's help page on turning off Varnish:
https://my.bluehost.com/cgi/help/turn_varnish_off. It may not matter, but after you do that, and before you test, it wouldn't be a bad thing to either clear your browser's cache & cookies, or test in an incognito window.
If that gets you into the manager, a call to Bluehost's support department to learn how to turn Varnish back on but exclude manager URLs would be in order.
Failing that, it may still pay to chat with Bluehost's support; they're bound to have dealt with various CMS (even if not MODX) login questions on their cloud accounts.
References that hint at this being the problem (admittedley referencing MODX Revo, not Evo, but still may apply:
