I used a different magnet to connect, it does not matter as far as I can see. Do you have a new router, make sure it is capable of receiving a signal at 2.4 GHz.
I deleted the original pump from the Reef factory app.
I reset the pump with the magnet,
Logged on to the pump wifi it will be called RFDP**********. using reeffactory password.
The go into a browser, type in the address www.dosingpump.io, then follow the instructions on screen.
https://www.manualslib.com/manual/2063763/Reef-Factory-Dosing-Pump.html?page=3
I hope this helps.
I deleted the original pump from the Reef factory app.
I reset the pump with the magnet,
Logged on to the pump wifi it will be called RFDP**********. using reeffactory password.
The go into a browser, type in the address www.dosingpump.io, then follow the instructions on screen.
https://www.manualslib.com/manual/2063763/Reef-Factory-Dosing-Pump.html?page=3
I hope this helps.