I've had issues with the home page loading really slow but luckily it's never given me that error. I have to go directly to orangepower.com/forum if I want it to load so I'm not waiting to enter my login. Chrome here too.
It does this to me when I try to get on OP using my wifi at home. It can be my phone, ipad or desktop, doesn't matter. Won't let me access the site. Anywhere else or any other device that is not on my wifi it seems to work. I have no idea what to do about that.