If your nodes work fine (i.e., you can associate with them and browse but they aren't picking up your network settings), this usually means they haven't been added to your network.  To be able to check-in, a node has to be added using the "Add/Edit Nodes" button in the "Edit Network" Dashboard page.  Once you click on this button, you will see a new window showing a Google map of your location.  You can drag this map around and zoom in and out as needed.  It is also sometimes helpful to switch to Satellite view so you can see buildings.  Sometimes the Satellite view will let you zoom in closer as well.

To add a node, just click on the map then enter the MAC address from the bottom of the node.  You should also enter a name for the node, then click "Add".  Repeat for all the nodes on your network.  Note that if you have a lot of nodes to add, a hand-scanner is often helpful as most nodes have a barcoded MAC address.