Hi @Anonymous User
For both Sticks not to work with their supplied remote controllers plus the remote controller App not to operate either Stick on your smartphone sounds to me that something might not be right elsewhere (possibly something pointing towards your Router).
First thing i would try is rebooting both your Router and Sticks.
If no joy, then maybe try the trouble shooting steps on this link.
Should you be still having a problem then maybe consider a full factory reset on one of the Sticks and Router to see if that makes any difference.