While preforming a backup, I got hung up and had to refresh page (after an hour) "Put the site in maintenance mode" was checked. Now my admin log in is redirecting to the site itself. I deleted maintenance.flag through ftp but I'm still unable to log into my admin panel. I added some "allow IP code" to my index.php file but again, no go. Any other suggestions?
If you get redirected to the site, but not to the installer and you don't get a 503 maintenance mode page, then your admin URL has changed. Look in your
If you get the 503 template and IP exceptions don't help, check for an alternate maintenance mode extension (BalkeTechnologies StoreMaintenance is one I frequently see). Another possibility is that there's a reverse proxy in the chain and it's hard-caching error messages. In that case request the admin with a query string, triggering a refresh (normally).
Finally, Redis_Session module also throws a 503 if it can't connect to Redis.