Closed. This question is not about programming or software development. It is not currently accepting answers. This question does not appear to be about a specific programming problem, a software algorithm, or software tools primarily used by programmers. If you believe the question would be on-topic on another Stack Exchange site, you can leave a comment to explain where the question may be able to be answered. Closed 5 days ago. Improve this question My ec2 instance hosted wordpress website is not loading , it is giving error of 504 gateway timeout, and also the wordpress admin is also not loading. Earlier i tried to access the EC2 instance through SSH terminal but was not successful in that, during that i have edited the security group but then rolled back to the previous configurations what wrong i may have done? Till Yesterday night my wordpress website was loading successfully and now it is not loading since morning Even the wordpress editor page is not loading now, it is hosted on EC2 AWS instance the IPv4 address is also not working