PIXMA TR8620 won't let me enter password to new Wi-Fi router

[Canonmark1]

I got a new wifi router. The printer finds it but it won't connect and It wont' allow me to input the password to connect it. 

[shadowsports]

Greetings,

Its recommended to re-run the setup software to configure the printer to connect to a new router or network.  Even if it uses the same SSID name.  

Windows:

Canon Knowledge Base - Easy Wireless Setup - PIXMA TR8620 for Windows

Mac:

Canon Knowledge Base - Easy Wireless Setup on a Mac - PIXMA TR8620

[Canonmark1]

that didn't help. The stupid printer still won't let me input the password, its stuck in the old network