A. J. Keller is as far as we know the developer of the OpenBCI WIFI shield, but he has left OpenBCI, and developed it further to create Neurosity out of it
the OpenBCI Wifi shield has issues with cyclic noise spiking and packet loss
there is an instruction how to solve this in the OpenBCI documentation.
one or several sellers on Aliexpress offer an updated WIFI shield
If you you find a WIFI shield which is updated and works, and you can confirm that is works, please let us now, and let us know, from which seller you bought it.