Setting something on top of the button and then turning on the switch at the back of the machine triggers factory reset mode… you might have wiped out any data that support can use to diagnose your issues.
Let me get back to a computer, I need to find the link to tell you what to do.
Okay, after reading up on it a bit, and re-reading what you did, you might have just sent it into connection mode by holding that button down for too long, and you didn’t need to change the router. Try this, start completely over.