I have fallowed all the steps and deployed Marillion on AWS EC2 using AMI , i was able to connect to it once and got through to the option of associating the ec2 with matillion but as soon asi associate it and try to access again using public IP of my ec2 its not reachable any more .i am getting below error 
 
 
This site can’t be reached
ec2-3-95-13-235.compute-1.amazonaws.com refused to connect.
             
            
              
              
              
            
            
           
          
            
            
              everytime i reboot my instance i am able to connect for few seconds then it gets non reachable , i deployed it on t2 micro , not sure if that's creating any problem 
             
            
              
              
              
            
            
           
          
            
            
              Hi @pradeep.aws1507 
 
Apologies for the delayed response. A micro instance definitely won't work. It has to be one of the instance types listed at https://documentation.matillion.com/docs/1991961#aws-instance-recommendations
 
Cheers,
Chika