If you are having troubles connecting to orderprinterpro.com please follow the guide below for your operating system. Once you have done the below, you should be again able to connect to the app.
Note: The DNS cache will clear itself after some time, but doing the below will force it to happen now.
Windows operating systems
To clear the DNS cache on Microsoft Windows, follow these steps:
Open a DOS command window. To do this, click Start, click Run, type cmd, and then press Enter.
At the command prompt, type the following command and then press Enter:
ipconfig /flushdns
The DNS cache is now clear.
Mac OS X operating systems
To clear the DNS cache on Apple Mac OS X, follow these steps:
Open a terminal window. To do this, click Applications, click Utilities, and then click Terminal.
At the command prompt, type the appropriate command for your Mac OS X version to clear the cache:
sudo killall -HUP mDNSResponder
Confirm with the password you use to login to your Mac.
The DNS cache is now clear.
Google Chrome browser
The Google Chrome web browser maintains its own internal DNS cache. To clear it, follow these steps:
IMPORTANT: Make sure to follow one of the above first.
Start Google Chrome.
In the address bar, type chrome://net-internals/#dns. Google Chrome displays a list of hosts in its internal DNS cache.
Click Clear host cache.
In the address bar, type chrome://net-internals/#sockets.
Click Close idle sockets, and then click Flush socket pools.