Can't connect to WordPress multisite db on AWS

I have an EC2 instance on AWS where I've set up a LAMP server to host a WordPress multisite. I'm now trying to transfer my local environment to AWS. Everything runs smoothly transfering files and uploading the db through Sequel Pro. When I try and access the site I keep getting a connection error.

• Have searched and replaced all instances of my local environment's url with the IP of my E2 instance.
• Tried using DB_HOST as localhost, AWS IP, and AWS DNS

If I use localhost I seem to be able to connect half-way, I end up with this message at /wp-admin,

"Could not find site 52.17.182.78. Searched for table wp_blogs in database example. Is that right?"

The IP is listed in wp_blogs. Server is set up with standard SSH access. WordPress version 4.1.2. Any ideas?