@Jiced 

A blinking orange LED on the TP15 smart plug means it's connecting to WiFi, in other words, it's either not connected or has lost connection and is trying to reconnect.

You can try to power cycle the plug, and move it closer to your router, see if that helps.

If your device is in the initial setup stage, try doing a factory reset and then set it up again from scratch. If there is still a problem, check suggestions here: What should I do if I fail to configure the Tapo devices