I have the same issue. Spent an hour with godaddy support but the only thing they could recommend is wp premium support for $80. i can intermittently login thru another computer to my wp dashboard so i deactivated all the plugins but no change. i cleared wp cache, did a restore to a previous date, still no change. updated all plugins again, updated php, no change. it worked yesterday just fine, i didn't do any changes and it is not working today. anyone?