Probably should not have done the factory reset.
Try unplugging the Bridge from power and plug the Play 5 into Ethernet and power it up.
As you wiped everything with the Factory Reset you would need to follow the “new System” instructions.
If it works, set the WiFi connection settings and unplug the Ethernet after a couple minutes. Power cycle the Play 5 and see if it connects. If it does it is likely a Bridge failure. If it does not it is likely a Play 5 radio failure.
The Bridge is optional these days so you can get by without it. If you want to keep it try replacing the power supply, a common failure. You could also replace the Bridge with a Boost.