Please refer to STEP 3 Plugin Configuration to get access to the Web interface administration.
Here is the Dashboard page of the plugin Web interface :
This picture may have have changed since this documentation was written.
They shaw the traffic state :
They shaw the device state :
Look at the other pages of the plugin Web interface.
This is a Plugin Dashboard from which you can in a short time if anything else is going wrong on the coordinator environment. This is some how self explanatory and you have comments for each section. In the header where you have the navigation tabs, you have also a switch which allow you to move coordinator and plugin into Pairing Mode (In case coordinator is already in pairing mode, the switch will automatically enabled).
In the footer (here in Green) you have some quick overview of :
the Firmware version on coordinator
In short, higher the value is , indicates a high interferences, worst it is. Better to select an other channel with lower level.