Problem Configuring Domain Mapping Plugin to Work

I have my multisite install working on subdirectories. I've had a dedicated ip setup for this plugin to function that is pointing at my domain name.

I've adjusted the dns and a name records to point to the dedicated ip address about 36+ hours ago.

When I attempt to enter in the domain via the domain name mapping plugin I get the warning to check my dns configuration.

From reviewing the instructions of the plugin I am pretty sure I am not missing anything. I have contacted my hosting provider to see if they can shed any light onto the situation but have not heard back yet.

Any advice on how to diagnose and resolve the issue? Thanks!