imageCLASS MF642Cdw won't connect to network

[Polina]

Hello, I have an issue with a Canon printer model mf642cdw. It can’t connect to my internet. It says:

Could not connect. Make sure the security settings configured for the device and the access point are the same.

I have no idea what I need to do. 
Previously, I didn’t have an issue with connection but after changing my Internet…. I just can not connect. What should I do? 

thank you in advance 

[shadowsports]

Greetings,

Please see my reply is this thread:

https://community.usa.canon.com/t5/Printer-Software-Networking/imageCLASS-MF641Cw-WiFi-password-is-d...

It's from a similar model, but should  likely help.