Don't care about wireshark at that time. See if sending what you want to send makes sense for your server..
Open a telnet connection to your server
Type GET /.... HTTP/1.1. (Exactly as it would be sent in your arduino code), hit enter
Type Host: 50.135.xxx.xxx and hit enter (hopefully you don't have the xxx 
)
TYpe Connection: close and hit enter 3 times
See what happens.
(Btw you don't need to obsfucate your 192.168.x.x address to us, that's a local network address so we can't do anything with it)